1975 Topps #537 Tommy Harper
About Tommy Harper
Tommy Harper broke into pro ball in 1960, signed by Cincinnati scout Bobby Mattick out of San Francisco State, and reached the majors with the Reds in 1962. A leadoff-hitting outfielder-infielder, he starred for Cincinnati (1962-67), Cleveland (1968), the Seattle Pilots/Milwaukee Brewers (1969-71) and the Boston Red Sox (1972-74) before finishing with the Angels, A's and Orioles. He led the majors with 73 stolen bases for the expansion 1969 Pilots - the most by an American Leaguer since Ty Cobb - and was the first player to bat for both the Pilots and the Brewers franchises. His 1970 season brought 31 homers and 38 steals, making him just the fifth player ever in the 30-30 Club, and earned him his lone All-Star nod and Brewers MVP honors. In 1973 with Boston he swiped a club-record 54 bases and was named team MVP. His 1975 Topps card, #537, catches him as a Red Sox after that stretch of two league stolen-base titles. He finished with 408 career steals.
Sources: Wikipedia · SABR BioProject · Baseball-Reference
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 284 | 2 | 60 | 163 | 40 | 11 | 5 | 3 | 0 |
| SGC | 7 | 0 | 2 | 1 | 2 | 1 | 0 | 1 | 0 |
Graded population — a scarcity guide, not a price. Snapshot 2026-08-19. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted. The graders do not split the 1975 Topps Mini or O-Pee-Chee issues into this set.
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Related cards
Team card: #172 Boston Red Sox
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- #32 Reggie Cleveland
- #56 Rick Wise
- #80 Carlton Fisk
- #103 Rick Miller
- #128 Bill Lee
- #152 Mario Guerrero
- #196 1958 MVPs
- #205 1967 MVPs
- #232 Diego Segui
- #255 Dwight Evans
- #280 Carl Yastrzemski
- #302 Rick Burleson
- #333 Dick Drago
Frequently asked questions
What is the 1975 Topps #537 card?
It is card #537 of the 660-card 1975 Topps Baseball set, picturing Tommy Harper.
How many cards are in the 1975 Topps Baseball set?
660 cards, numbered 1-660, with no variations and no short prints - PSA reports the cards were printed in equal quantities. The 1975 Topps Mini and the 1975 O-Pee-Chee issues are separate products with their own checklists.
Sources: Trading Card Database, Cardboard Connection, the PSA price guide, Baseball-Reference, the SABR BioProject and the National Baseball Hall of Fame, PSA & SGC population reports. Card data compiled and maintained by T206Cards.com. Page last updated 2026-10-05.