This is one of my favorite vintage Baseball postcards. It is a 1908-1909 Rose Company Postcard of Baseball players. There are 196 total cards in the set, and I would be surprised if a complete set existed in any collection. Brooklyn Superbas/ Dodger pitcher Harry McIntire is featured in this auction. Unfortunately, I don't have one in my collection, and by the looks of it, I might not be adding one for a long time. It sold for $306.99 in poor condition. I can't imagine what a card in mint condition would sell for.
eBay Auction Link: