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CAM-24S2, 1st Anniversary Flight%u2014%u2014December 17, 1928%u2014%u2014Indianapolis to Cincinnati to Spartanburg, SC.When Embry-Riddle Co. and Indianapolis celebrated the 1st anniversary of its initial air-mail flight, it issued a special cachet which also noted that it was also the %u201cTwenty-Fifth Anniversary Human Flight.%u201dAddressee, E.B. Lemmond, was an avid philatelist and an early member of the Precancel Stamp Society.