Some help for an ignorant stamp collector
I just came across several stamps I had when I was younger this weekend at my parent's house. I have no idea if they have any value, if they're reprints, or if they're really worth something. Is there a site that's good to visit to get an idea about them? Thanks for your help. I know VERY little about stamp collecting.
Atlanta Braves, Charlotte Hornets, Shawn Kemp, Dale Murphy, and Bobby Engram.