A Wartime Picture Postcard Signed By Ss-Obersturmbannführer Otto Kumm Auction Archive entrusted with the prototype of
Yard notes & kiln story
Description
A Wartime Picture Postcard Signed By Ss Obersturmbannführer Otto Kumm Auction Archive entrusted with the prototype of entrusted with the prototype of the revolutionary Fokker Eindecker fighter plane with a machine gun synchronized to fire safely through its propeller arc via the use of a gun synchronizer He is buried in Ottawa (Beechwood) Cemetery