I have been collecting sports cards and autographs for over 40 years. In most cases I do not have COAs. Pricing for lots may vary.
1962 Topps J.C. Martin AS Rookie Cup Card #91 Autograph Signed White Sox
2019 Topps Series 2 Baseball Checklist, MLB Set Info, Boxes, Variations
Fall Classic 2022 - Sports Memorabilia Auctions
Timsvintagecards
Luis Aparicio Signed 8x10 Photo Chicago White Sox (jsa Vv33958)
J.C. Martin Baseball Cards
Peters The Great - BallNine
J.C. Martin Interview on Baseball Almanac
J.C. Martin Sports Cards Values - GoCollect (j-c-martin )
J.C. Martin Baseball Cards
SCF - TTMM player address report