I have at least one old one from WW2 era ,I think but doubt it is 12" --will have to look.....PM me if you want a copy-I would have to trace it--mine is the original from the newspaper----one here to buy:
www.quiltblocklibrary.com/.../AirplaneQuiltBlockPattern/540
free one here
http://www.quiltzine.com/printblocks30.html