Don Sommers American Arrow Corp makes some very nice reproduction radiator mascots including this "Supermarine Seaplane" (only $750.00) (click on the photo to link to the American Arrow Corp web page):
....or how about his 1928-1929 repro Quail mascot (only $685.00):
By the way, all of the American Arrow Corp radiator mascots are made out of stainless steel.
The airplanes, both biplanes and single winged planes (similar to yours) are being reproduced:
Brad in Maryland