1970 Topps #527 Don Bosch
About Don Bosch
Bosch began 1970 in the minors with Triple-A Buffalo-Winnipeg. In midseason the Expos traded him to the Houston Astros for pitcher Mike Marshall, and he finished the year with Oklahoma City before leaving professional baseball. His 1970 Topps card is #527, a fifth-series number printed with the Expos.
Don Bosch was a switch-hitting outfielder from San Francisco whose glove work in the minor leagues drew comparisons to Willie Mays. Signed by the Pittsburgh Pirates out of St. Ignatius College Prep in 1960, he climbed the Pirates system and earned all-star honors in 1963, 1965 and 1966. At Triple-A Columbus in 1966 he was named the International League's top defensive outfielder. That December he was traded, along with Don Cardwell, to the New York Mets for pitcher Dennis Ribant and Gary Kolb, arriving with high expectations as the club's answer in center field. He started and led off the 1967 opener, but by early June he was sent down to Triple-A Jacksonville, and he finished that year batting .140 in 44 games. Purchased by the expansion Montreal Expos after the 1968 season, he played his final big-league games there in 1969 before a knee injury effectively ended his career. He finished with a .164 average over four seasons.
Sources: Wikipedia · SABR BioProject · Baseball-Reference · BaseballCardPedia
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 192 | 6 | 42 | 105 | 22 | 9 | 7 | 1 | 0 |
| SGC | 6 | 0 | 0 | 2 | 4 | 0 | 0 | 0 | 0 |
Graded population — a scarcity guide, not a price. Data as of 2026-10-19. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted.
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Related cards
Team card: #509 Montreal Expos
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- #87 Steve Renko
- #109 Expos 1970 Rookie Stars
- #124 Larry Jaster
- #147 Angel Hermoso
- #164 Ty Cline
- #193 Mike Wegener
- #221 Ron Brand
- #238 Jose Laboy
- #243 Joe Sparma
- #268 Claude Raymond
- #293 Bob Bailey
- #332 Bobby Wine
Frequently asked questions
What is the 1970 Topps #527 card?
It is card #527 of the 720-card 1970 Topps Baseball set, picturing Don Bosch of the Montreal Expos.
How many cards are in the 1970 Topps Baseball set?
720 cards, tracked as 726 collectible states. Numbers run from 1 to 720 with none skipped, issued in seven series - #1-132, #133-263, #264-372, #373-459, #460-546, #547-633 and the high numbers, #634-720; 6 cards, all of them checklists, carry catalogued print variations that the master set counts separately.
Sources: Trading Card Database, PSA CardFacts, BaseballCardPedia, Cardboard Connection, Baseball Almanac, 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 2026-10-25.