I just acquired this pinback via ebay and am a bit baffled. I have never seen, heard of, or read about another pin like this. It's similar to the crossed bats set we are all aware of, but with several unique design elements. Has anyone here seen another like this of the Tigers or any other team? Needless to say, I am excited to have added a new pin type to my collection, but as a Tigers collector I am particularly thrilled