Check the listing for details. Vintage AMF Embroidered Triangular Unused Bowling Patch. Listed at 39.99 USD. Bottom of a box find. Hard-to-find red triangle AMF bowling patch. Found in Milwaukee. How odd is that. . ?. This includes outright mistakes, misrepresentations, or any errors on my part. When I photograph a paper item, the first two photos are usually the front and back covers next to a ruler.