McCAIN, Justice.
We have for review a decision of the Third District Court of Appeal which passed upon a question certified by that court to be of great public interest. We have jurisdiction pursuant to Art. V, § 3(b)(3), Constitution of Florida, F.S.A.
The salient facts establish that Harry M. Burt executed two pledges of $50,000.00 each in 1968. These pledges were delivered to the petitioner and provided in pertinent part:
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