Recently I've been considering expanding my Royals collection from just cards and autographs to some game used items. Flipping through ebay, I saw a game used bat of Jerry Terrell:
http://www.ebay.com/itm/1973-1980-Je...item35c03e54fd
I was considering making an offer, but I didn't really know what would be fair. Also, are there any general guidelines for game used bats (Pre-war, 50s, 60s?) I know very little about vintage memorabilia and am not really sure where to start.
Thanks for the help!