Billy Robinson in Montreal, Canada, with a biplane built by the National Airplane Co. and Canadian school children. (Description taken from Grinnell Then and Now published by the Grinnell Herald-Register)
A stock certificate for one share in the Grinnell Aeroplane Company purchased by James Buswell with a par value of $50 per share. Certificate is signed by L. Braude, president and Harold L. Beyer, secretary.
Duplicate of the radial motor and propeller destroyed when Billy Robinson crashed. This motor was built by the Dodge Tool company, a Grinnell enterprise headed by W. S. Dodge, following Robinson's plans and drawings. It is currently on display at the…