Found this for sale on my local Canada Kijiji Classifieds, call Ebay Classifieds in the US.
WW2 Fairchild K-20 Aerial Camera RARE
The Fairchild K-20 was an aerial camera made by the Folmer-Graflex Corporation during World War Two. About 15,000 were made from 1941-1945.
t is one of a series of "K" cameras and just about every bomber carried one for documenting strikes, surveillance, and so on. They were also used in light observation planes and may have been in service up through the Korean War
Includes Case, Camera, extra Lens, Lens case
This is best Price you can find
This Camer from Norfolk Naval Station Sticker inside case!
Kijiji Ad with more pictures.