I have listed a rare football tintype, possibly the earliest known, on ebay.
http://www.ebay.com/itm/232074704443...84.m1555.l2649
I have also listed a handwritten letter with great football content from 1886. Content is about the Yale football team and their superstar Harry Beecher.
http://www.ebay.com/itm/232077132037...84.m1555.l2649
Rob M