Hiroshima Toyo Carp Vintage, Showa Era, Retro Cap, Hat Kids' Size Wappen, Patch Size 53 Made in Japan A super rare vintage Hiroshima Toyo Carp cap. The "C" logo is blue. This is a rare kids' cap model used from 1975, the year of the red helmet, to 1988. It's a patch, not embroidery, making it an extremely rare vintage item. I purchased it new and have kept it stored in a case.