PSA will authenticate everything lol literally lol I contacted them once cause I had a piece of Larry Birds HS basketball court signed and they were more than willing. Once it's authenticated, you need to contact a paper conservator, they can help walk you through the best ways to store and display it
11-12 UD Hockey w/ YGs: 438/500 (88%)
DO NOT TRADE LIST: chargers2427, mrmagnum75