A Kellett Autogiro flying mail off the roof of the Philadelphia Post Office at 8th and Chestnut Streets, circa 1935.Close Window Credit: Courtesy of the Pennsylvania State Archives Using Cierva and Pitcairn designs, the Kellett Autogiro Company of Philadelphia, PA, produced its own autogiros in...
Honoring a Fallen Hero; Post Office Named for Slain Officer ChestnutKayce T. Ataiyero