First American Rocket Airplane Flight, Feb. 23, 1936. Three items, two with No. CE1 used with special flight stamps in blocks of four, one in green on cover to Albion Penn. with green cachet and the other in red on card to Springfield Mass. with violet cachet, each tied by "Hewitt, N.J. Feb. 23, 1936" circular datestamp and signed Willey Ley, the last No. 771 with red special flight stamp in block of four on card to Albion Penn. with green cachet, only five covers with blocks of four are known and the Farley Issue is the unique usage

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