The notes are being issued by Barclays Bank PLC (“Barclays”). There are important differences between the notes and a conventional debt security, including different investment risks. See “ Risk Factors ” beginning on page TS-7 of this term sheet and beginning on page PS-7 of product supplement EQUITY INDICES STR-1.

Our initial estimated value of the notes, based on our internal pricing models, is expected to be between $9.50 and $9.61 per unit on the pricing date, which is less than the public offering price listed below. See “ Summary ” on the following page, “ Risk Factors ” beginning on page TS-7 of this term sheet and “ Structuring the Notes ” on page TS-14 of this term sheet.

Notwithstanding any other agreements, arrangements or understandings between Barclays and any holder of the notes, by acquiring the notes, each holder of the notes acknowledges, accepts, agrees to be bound by, and consents to the exercise of, any U.K. Bail-in Power by the relevant U.K. resolution authority. All payments are subject to the exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority. See “ Consent to U.K. Bail-in Power ” on page TS-3 and “ Risk Factors ” on page TS-7 of this term sheet.

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None of the Securities and Exchange Commission (the “SEC”), any state securities commission, or any other regulatory body has approved or disapproved of these securities or determined if this Note Prospectus (as defined below) is truthful or complete. Any representation to the contrary is a criminal offense.

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(1)                For any purchase of 500,000 units or more in a single transaction by an individual investor or in combined transactions with the investor’s household in this offering, the public offering price and the underwriting discount will be $9.95 per unit and $0.15 per unit, respectively. See “Supplement to the Plan of Distribution” below.

The notes:

Merrill Lynch & Co.

July     , 2017

The terms and risks of the notes are contained in this term sheet and the documents listed below (together, the “Note Prospectus”).  The documents have been filed as part of a registration statement with the SEC, which may, without cost, be accessed on the SEC website as indicated below or obtained from MLPF&S by calling 1-800-294-1322:

§       Product supplement EQUITY INDICES STR-1 dated October 31, 2016:
https://www.sec.gov/Archives/edgar/data/312070/000110465916153368/a16-19381_64424b3.htm

§       Series A MTN prospectus supplement dated July 18, 2016:
https://www.sec.gov/Archives/edgar/data/312070/000110465916132999/a16-14463_21424b3.htm

§       Prospectus dated July 18, 2016:
https://www.sec.gov/Archives/edgar/data/312070/000119312516650074/d219304df3asr.htm

Before you invest, you should read the Note Prospectus, including this term sheet, for information about us and this offering.  Any prior or contemporaneous oral statements and any other written materials you may have received are superseded by the Note Prospectus. Capitalized terms used but not defined in this term sheet have the meanings set forth in product supplement EQUITY INDICES STR-1. Unless otherwise indicated or unless the context requires otherwise, all references in this document to “we,” “us,” “our,” or similar references are to Barclays.

Consent to U.K. Bail-in Power

Notwithstanding any other agreements, arrangements or understandings between us and any holder of the notes, by acquiring the notes, each holder of the notes acknowledges, accepts, agrees to be bound by, and consents to the exercise of, any U.K. Bail-in Power by the relevant U.K. resolution authority.

Under the U.K. Banking Act 2009, as amended, the relevant U.K. resolution authority may exercise a U.K. Bail-in Power in circumstances in which the relevant U.K. resolution authority is satisfied that the resolution conditions are met. These conditions include that a U.K. bank or investment firm is failing or is likely to fail to satisfy the Financial Services and Markets Act 2000 (the “FSMA”) threshold conditions for authorization to carry on certain regulated activities (within the meaning of section 55B FSMA) or, in the case of a U.K. banking group company that is a European Economic Area (“EEA”) or third country institution or investment firm, that the relevant EEA or third country relevant authority is satisfied that the resolution conditions are met in the respect of that entity.

The U.K. Bail-in Power includes any write-down, conversion, transfer, modification and/or suspension power, which allows for (i) the reduction or cancellation of all, or a portion, of the principal amount of, any interest on, or any other amounts payable on, the notes; (ii) the conversion of all, or a portion, of the principal amount of, any interest on, or any other amounts payable on, the notes into shares or other securities or other obligations of Barclays or another person (and the issue to, or conferral on, the holder of the notes such shares, securities or obligations); and/or (iii) the amendment or alteration of the maturity of the notes, or amendment of the amount of any interest or any other amounts due on the notes, or the dates on which any interest or any other amounts become payable, including by suspending payment for a temporary period; which U.K. Bail-in Power may be exercised by means of a variation of the terms of the notes solely to give effect to the exercise by the relevant U.K. resolution authority of such U.K. Bail-in Power. Each holder of the notes further acknowledges and agrees that the rights of the holders of the notes are subject to, and will be varied, if necessary, solely to give effect to, the exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority. For the avoidance of doubt, this consent and acknowledgment is not a waiver of any rights holders of the notes may have at law if and to the extent that any U.K. Bail-in Power is exercised by the relevant U.K. resolution authority in breach of laws applicable in England.

For more information, please see “Risk Factors” below as well as “U.K. Bail-in Power,” “Risk Factors—Risks Relating to the Securities Generally—Regulatory action in the event a bank or investment firm in the Group is failing or likely to fail could materially adversely affect the value of the securities” and “—Under the terms of the securities, you have agreed to be bound by the exercise of any U.K. Bail-in Power by the relevant U.K. resolution authority” in the accompanying prospectus supplement .

Examples of Hypothetical Payments

The following examples are for purposes of illustration only. They are based on hypothetical values and show hypothetical returns on the notes. They illustrate the calculation of the Call Amount or Redemption Amount, as applicable, based on the hypothetical terms set forth below. The actual amount you receive and the resulting return will depend on the actual Starting Value, Threshold Value, Call Level, Observation Levels, Call Premiums, and the term of your investment. The following examples do not take into account any tax consequences from investing in the notes. These examples are based on:

1)                          a Starting Value of 100.00;

2)                          a Threshold Value of 100.00;

3)                          a Call Level of 100.00;

4)                          an expected term of the notes of approximately five years, if the notes are not called on the first, second, third or fourth Observation Dates;

5)                          a Call Premium of 11.50% of the principal amount if the notes are called on the first Observation Date, 23.00% if called on the second Observation Date, 34.50% if called on the third Observation Date, 46.00% if called on the fourth Observation Date and 57.50% if called on the final Observation Date (the midpoint of the applicable Call Premium ranges); and

6)                          Observation Dates occurring approximately one, two, three, four and five years after the pricing date.

The hypothetical Starting Value of 100.00 used in these examples has been chosen for illustrative purposes only, and does not represent a likely actual Starting Value of the Market Measure. For recent actual levels of the Market Measure, see “The Index” section below. The Index is a price return index and as such the level of the Index will not include any income generated by dividends paid on the stocks included in the Index, which you would otherwise be entitled to receive if you invested in those stocks directly. In addition, all payments on the notes are subject to issuer credit risk.

Notes Are Called on an Observation Date

The notes will be called at $10.00 plus the applicable Call Premium on one of the Observation Dates if the Observation Level is equal to or greater than the Call Level.

Example 1 - The Observation Level on the first Observation Date is 110.00. Therefore, the notes will be called at $10.00 plus the Call Premium of $1.15 = $11.15 per unit. After the notes are called, they will no longer remain outstanding and there will not be any further payments on the notes.

Example 2 - The Observation Level on the first Observation Date is below the Call Level, but the Observation Level on the second Observation Date is 105.00. Therefore, the notes will be called at $10.00 plus the Call Premium of $2.30 = $12.30 per unit. After the notes are called, they will no longer remain outstanding and there will not be any further payments on the notes.

Example 3 - The Observation Levels on the first, second, third and fourth Observation Dates are below the Call Level, but the Observation Level on the fifth and final Observation Date is 105.00. Therefore, the notes will be called at $10.00 plus the Call Premium of $5.75 = $15.75 per unit.

Notes Are Not Called on Any Observation Date

Example 4 - The notes are not called on any Observation Date and the Ending Value is less than the Threshold Value. The Redemption Amount will be less, and possibly significantly less, than the principal amount. For example, if the Ending Value is 85.00, the Redemption Amount per unit will be:

§                   Your return on the notes may be affected by factors affecting the international securities markets, specifically changes within the Eurozone. The Eurozone is and has been undergoing severe financial stress, and the political, legal and regulatory ramifications are impossible to predict. Changes within the Eurozone could adversely affect the performance of the Index and, consequently, the value of the notes. In addition, you will not obtain the benefit of any increase in the value of the euro against the U.S. dollar, which you would have received if you had owned the securities in the Index during the term of your notes, although the level of the Index may be adversely affected by general exchange rate movements in the market .

§                   Our business, hedging and trading activities, and those of MLPF&S and our respective affiliates (including trading in shares of companies included in the Index), and any hedging and trading activities we, MLPF&S or our respective affiliates engage in for our clients’ accounts, may affect the market value and return of the notes and may create conflicts of interest with you.

§                   The Index sponsor may adjust the Index in a way that affects its level, and has no obligation to consider your interests.

§                   You will have no rights of a holder of the securities represented by the Index, and you will not be entitled to receive securities or dividends or other distributions by the issuers of those securities.

§                   While we, MLPF&S or our respective affiliates may from time to time own securities of companies included in the Index, we, MLPF&S and our respective affiliates do not control any company included in the Index, and have not verified any disclosure made by any other company.

§                   There may be potential conflicts of interest involving the calculation agents, one of which is us and one of which is MLPF&S.  These potential conflicts of interest include the calculation agents’ roles in establishing the economic terms of the notes and determining the estimated value of the notes.  We have the right to appoint and remove the calculation agents.

§                   The U.S. federal income tax consequences of the notes are uncertain, and may be adverse to a holder of the notes.  See “Material U.S. Federal Income Tax Considerations” below and “Material U.S. Federal Income Tax Considerations” beginning on page PS-27 of product supplement EQUITY INDICES STR-1.

Other Terms of the Notes

The provisions of this section supersede and replace the definition of “Market Measure Business Day” set forth in product supplement EQUITY INDICES STR-1 .

The Index

All disclosures contained in this term sheet regarding the Index, including, without limitation, its make-up, method of calculation, and changes in its components, have been derived from publicly available sources. The information reflects the policies of, and is subject to change by STOXX Limited (the “Index sponsor”). The Index sponsor, which licenses the copyright and all other rights to the Index, has no obligation to continue to publish, and may discontinue publication of, the Index. The consequences of the Index sponsor discontinuing publication of the Index are discussed in the section entitled “Description of the Notes — Discontinuance of an Index” beginning on page PS-21 of product supplement EQUITY INDICES STR-1 .  None of us, the calculation agents, or MLPF&S accepts any responsibility for the calculation, maintenance, or publication of the Index or any successor index.

The Index was created by STOXX Limited, a wholly owned subsidiary of Deutsche Börse AG.  Publication of the Index began on February 26, 1998, based on an initial index value of 1,000 on December 31, 1991.  The Index is disseminated on the STOXX Limited website: http:// www .stoxx.com, which sets forth, among other things, the country and industrial sector weightings of the securities included in the Index.  Information contained in the STOXX Limited website is not incorporated by reference in, and should not be considered a part of, this index supplement, the prospectus supplement, the prospectus or any applicable pricing supplement.

Index Composition and Maintenance

The Index is composed of 50 component stocks of market sector leaders in terms of free-float market capitalization from within the 19 EURO STOXX ®  Supersector indices, which includes stocks selected from 11 Eurozone countries: Austria, Belgium, Finland, France, Germany, Ireland, Italy, Luxembourg, the Netherlands, Portugal and Spain. The component stocks have a high degree of liquidity and represent the largest companies across all supersectors as defined by the Industry Classification Benchmark.

The composition of the Index is reviewed annually, based on the closing stock data on the last trading day in August.  The component stocks are announced on the first trading day in September.  Changes to the component stocks are implemented on the third Friday in September and are effective the following trading day.  The composition of the Index is also reviewed monthly to ensure that component stocks still remain eligible for inclusion.  Any resulting changes from the monthly review are implemented on the close of the fifth trading day following the monthly review and are effective the next trading day.  Changes in the composition of the Index are made to ensure that the Index includes the 50 market sector leaders from within the EURO STOXX ®  Index.

The free float factors for each component stock used to calculate the Index, as described below, are reviewed, calculated and implemented on a quarterly basis and are fixed until the next quarterly review.

The Index is also reviewed on an ongoing basis.  Corporate actions (including initial public offerings, mergers and takeovers, spin-offs, delistings, bankruptcy, and price and share adjustments) that affect the index composition are immediately reviewed.  Any changes are announced, implemented and effective in line with the type of corporate action and the magnitude of the effect.

Index Calculation

The Index is calculated with the “Laspeyres formula,” which measures the aggregate price changes in the component stocks against a fixed base quantity weight. The formula for calculating the index value can be expressed as follows:

The “free float market capitalization of the Index” is equal to the sum of the products of the closing price, number of shares, free float factor and weighting cap factor for each component stock as of the time the Index is being calculated. The weighting cap factor limits the weight of each component stock within the Index to a maximum of 10%.

The Index is also subject to a divisor, which is adjusted to maintain the continuity of the index values across changes due to corporate actions.  The following is a summary of the adjustments to any component stock made for corporate actions and the effect of such adjustment on the divisor, where shareholders of the component stock will receive “B” number of shares for every “A” share held (where applicable).

(1)  Special cash dividend:

Cash distributions that are outside the scope of the regular dividend policy or that the company defines as an extraordinary distribution

Adjusted price = closing price – dividend announced by the company × (1 – withholding tax if applicable)

Divisor: decreases

(2)  Split and reverse split:

Adjusted price = closing price × A / B

New number of shares = old number of shares × B / A

Divisor: unchanged

(3)  Rights offering:

If the subscription price is not available or if the subscription price is equal to or greater than the closing price on the day before the effective date, then no adjustment is made.

In case the share increase is greater than or equal to 100% (B / A > 1), the adjustment of the shares and weight factors are delayed until the new shares are listed.

Adjusted price = (closing price × A + subscription price × B) / (A + B)

New number of shares = old number of shares × (A + B)/ A

Divisor: increases

(10)  Combination stock distribution (dividend or split) and rights offering:

For this corporate action, the following additional assumptions apply:

Shareholders receive B new shares from the distribution and C new shares from the rights offering for every A share held.

If A is not equal to one share, all the following “new number of shares” formulae need to be divided by A:

- Stock distribution and rights (neither action is applicable to the other):

Adjusted price = (closing price × A + subscription price × C) / (A + B + C)

New number of shares = old number of shares × (A + B + C) / A

Divisor: increases

The following graph shows the daily historical performance of the Index in the period from January 1, 2008 through July 13, 2017.  We obtained this historical data from Bloomberg L.P.  We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. On July 13, 2017, the closing level of the Index was 3,527.83.

Historical Performance of the Index

This historical data on the Index is not necessarily indicative of the future performance of the Index or what the value of the notes may be. Any historical upward or downward trend in the level of the Index during any period set forth above is not an indication that the level of the Index is more or less likely to increase or decrease at any time over the term of the notes.

Before investing in the notes, you should consult publicly available sources for the levels of the Index.

License Agreement

We have entered into a non-exclusive license agreement with the Index sponsor whereby we, in exchange for a fee, are permitted to use the Market Measure in connection with certain securities, including the notes.  We are not affiliated with the Index sponsor; the only relationship between the Index sponsor and us is any licensing of the use of the Index sponsor’s indices and trademarks relating to them.

The license agreement between the Index sponsor and us provides that the following language must be set forth herein:

The Index sponsor and its licensors (the “Licensors”) have no relationship to us, other than the licensing of the Index and the related trademarks for use in connection with the notes.

The Index sponsors and its Licensors do not :

§                   Have any responsibility or liability for or make any decisions about the timing, amount or pricing of the notes.

§                   Have any responsibility or liability for the administration, management or marketing of the notes.

§                   Consider the needs of the notes or the owners of the notes in determining, composing or calculating the Index or have any obligation to do so.

The Index sponsor and its Licensors will not have any liability in connection with the notes. Specifically,

§                   The Index sponsor and its Licensors do not make any warranty, express or implied and disclaim any and all warranty about :

§                   The results to be obtained by the notes, the owner of the notes or any other person in connection with the use of the Index and the data included in the Index;

§                   The accuracy or completeness of the Index and its data; and

§                   The merchantability and the fitness for a particular purpose or use of the Index and its data.

The Index sponsor and its Licensors will have no liability for any errors, omissions or interruptions in the Index or its data.

Under no circumstances will the Index sponsor or its Licensors be liable for any lost profits or indirect, punitive, special or consequential damages or losses, even if the Index sponsor or its Licensors knows that they might occur.

The licensing agreement between us and the Index sponsor is solely for our respective benefit and not for the benefit of the owners of the notes or any other third parties.

Structuring the Notes

The notes are our debt securities, the return on which is linked to the performance of the Index.  As is the case for all of our debt securities, including our market-linked notes, the economic terms of the notes reflect our actual or perceived creditworthiness at the time of pricing.  The economic terms of the notes are based on our internal funding rates, which are our internally published borrowing rates based on variables such as market benchmarks, our appetite for borrowing, and our existing obligations coming to maturity.  Our internal funding rates may vary from the levels at which our benchmark debt securities trade in the secondary market.  Our estimated value on the pricing date will be based on our internal funding rates.  Our estimated value of the notes may be lower if such valuation were based on the levels at which our benchmark debt securities trade in the secondary market.

Payments on the notes, including the amount you receive at maturity or upon an automatic call, will be calculated based on the $10 principal amount per unit and will depend on the performance of the Index. In order to meet these payment obligations, at the time we issue the notes, we may choose to enter into certain hedging arrangements (which may include call options, put options or other derivatives) with MLPF&S or one of its affiliates.  The terms of these hedging arrangements are determined by seeking bids from market participants, including MLPF&S and its affiliates or our affiliates, and take into account a number of factors, including our creditworthiness, interest rate movements, the volatility of the Index, the tenor of the notes and the tenor of the hedging arrangements.  The economic terms of the notes and their estimated value depend in part on the terms of these hedging arrangements, any estimated profit that we or any of our affiliates expect to earn in connection with structuring the notes, and estimated costs which we may incur in hedging our obligations under the notes.

MLPF&S has advised us that the hedging arrangements will include a hedging related charge of approximately $0.075 per unit, reflecting an estimated profit to be credited to MLPF&S from these transactions.  Since hedging entails risk and may be influenced by unpredictable market forces, additional profits and losses from these hedging arrangements may be realized by MLPF&S or any third party hedge providers.

For further information, see “Risk Factors—General Risks Relating to the Notes” beginning on page PS-6 and “Use of Proceeds and Hedging” on page PS-17 of product supplement EQUITY INDICES STR-1.