Contents of the Collection The collection consists of correspondence from Edmund Abbott to Aggie and John Diebold in 1984 that includes two black-and-white 7x9" photographs of Pan American's amphibious Clipper aircraft, taken in Florida, 1937. One photograph features a Pan Am Airways Sikorsky S-42 on a runway. The other photograph features a Pan Am Airways Sikorsky S-40 docked with passengers boarding.