September 2025 Sports Card & Memorabilia Auction
This lot is closed for bidding. Bidding ended on 9/7/2025
Offered is an exceptional and seldom-seen Connie Mack single-signed baseball on a Spalding Official Inter-State League ball. A towering figure in baseball history, Mack’s remarkable 50-year managerial career and role as owner of the Philadelphia A’s make his autograph one of the most coveted in the hobby. The ball features his signature across the sweet spot, with tape residue over the autograph. Authenticated by PSA/DNA with a full letter of authenticity, this remains a prized opportunity to acquire a genuine signature from the longest-serving manager in Major League Baseball history.
Condition: VG
Connie Mack Single-Signed Spalding Official Inter-State League Baseball - Full PSA/DNA Letter of Authentication
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