Nice items, fellows!
My collection of memorabilia is very modest but I do have a few personal favorites:
1920s PC Back Exhibit original art for Sammy Bohne card. I've never seen another piece of original art from the set:
Original art from a 1940s Lucille Ball Exhibit card:
1921 Exhibit machine header of Jack Dempsey:
Max Baer signed inscribed photo. Not only the nicest vintage signature I have but also signed during his reign as heavyweight champ:
