Here are a pair of "1958" Topps Space Cards original artworks that Mastro offered in his June 2008 Classic Collector Auction.

It’s always amused me how hobby periodicals advertised on each other’s pages, almost like an endless loop of cross-promotion. So, I wasn’t surprised to find this Baseball Cards Magazine ad in the May 1982 issue of The Trader Speaks.

Here's one of the most gorgeous pieces of sports memorabilia: an extremely rare 1942 Rose Bowl Program for Duke vs. Oregon State, played in Durham, N.C.

How's this for a unique hobby niche, NBA Fines Documents? I apologize for the image quality; the photo in the 2002 auction catalog is tiny.

Old catalogs, new discoveries! From the October 2007 Classic Collector Auction Catalog: 1984 Topps Gremlins Rack Pack Display Box Production Artwork and Color Proof Sheets.