1934 Detroit Aircraft Corporation Stock Certificate. Nifty vignette of oncoming prop airplane with blimp hovering above city of Detroit on this attrative scripophily document. The Detroit Aircraft Corporation was incorporated in 1922 and owned the entire capital stock of the Ryan Aircraft Corp., Aircraft Development Corp., Aviation Tool Co., Groose Airport, Inc., Marine Aircraft Corp., Parks Air College and Affiliated Companies, Detroit Aircraft Export Co., Gliders, Inc., and Eastman Aircraft Corp. It also owned a 90% interest in the Blackburn Aeroplane and Motor Company, practically all of the capital stock of the Lockheed Aircraft Company and a 40% interest in Winton Aviation Engine Co. The Detroit Aircraft Corporation failed during the depression. (Source: Wikipedia). This antique stock certificate is in VF+ condition.