1975 Topps #305 Jim Colborn
About Jim Colborn
A 1967 free-agent signee out of Whittier College, the right-hander made his big-league debut with the Chicago Cubs in 1969 after also studying and pitching at the University of Edinburgh in Scotland. Traded to Milwaukee for Jose Cardenal in December 1971, Colborn became the franchise's first 20-game winner in 1973, going 20-12 with a 3.18 ERA and earning his lone All-Star selection, a season this 1975 Topps #305 card reflects during his Brewers tenure. After three losing seasons in Milwaukee, he was dealt to Kansas City with Darrell Porter and won 18 games for the 1977 AL West champions. On May 14 of that year he no-hit the Texas Rangers 6-0, the first no-hitter thrown by a Royal at Royals Stadium. He closed his career in 1978 with Kansas City and Seattle, finishing 83-88 with a 3.80 ERA and 688 strikeouts, and later spent years as a big-league pitching coach under Jim Tracy in Los Angeles and Pittsburgh.
Sources: Wikipedia · Baseball-Reference
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 351 | 8 | 98 | 201 | 23 | 10 | 9 | 2 | 0 |
| SGC | 8 | 0 | 2 | 5 | 0 | 1 | 0 | 0 | 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: #384 Milwaukee Brewers
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Frequently asked questions
What is the 1975 Topps #305 card?
It is card #305 of the 660-card 1975 Topps Baseball set, picturing Jim Colborn.
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.