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You may propose the following wording:
1. I GIVE DEVISE AND BEQUEATH all my Estate not hereby or by any Codicil hereto otherwise disposed of unto my mother and sister absolutely in equal shares as when and how they shall think fit to call in sell and convert into money such part thereof as may not consist of money with power to postpone such sale calling in and conversion in whole or in part for such period as they without being liable to account for the exercise of discretion in so postponing may think proper and with power to retain any part thereof in the same state of investment as at my death.
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