1978 Topps baseball card #202 Home Run Leaders George Foster Jim Rice NM/M
New York Yankee Legends: Ron Guidry's #49 retired cementing his place in history
Discounted MLB Memorabilia, Autographed MLB Documents & Cut Signatures On Sale
The New York Yankees - Autographed Signed Baseball Circa 1985 With Co-Signers
Signed Cards
Ron Guidry autographed Jersey (New York Yankees)
Atley Donald – Society for American Baseball Research
Beckett Baseball May 2021
Mantle Collectibles Guide Books Part 3 - Sports Collectors Digest
Calaméo - Spring 2023