1958 Topps #147 Don McMahon
About Don McMahon
Don McMahon's 1958 Topps card is #147, a Series 2 rookie card showing him with the Milwaukee Braves. Called up in June 1957, he went 2-3 with nine saves and a 1.54 ERA in 46.2 innings, then threw five scoreless World Series innings against the Yankees as the Braves won in seven games. In 1958 he went 7-2 with a 3.68 ERA and made the National League All-Star team.
Donald John McMahon was a right-handed relief pitcher from Brooklyn, New York, signed by the Boston Braves as an amateur free agent in 1950 and converted from third base to the mound in their farm system. He did not reach the majors until June 30, 1957, at age 27, after roughly five and a half years in the minors and two years in the Army, and he believed he was the first pitcher ever called up strictly as a reliever. Used almost entirely out of the bullpen, he appeared in 874 games, just two of them as a starter, and finished 90-68 with a 2.96 ERA, 1,003 strikeouts and 153 saves. He was a 1958 National League All-Star selection and won World Series rings with the 1957 Braves and the 1968 Tigers, also pitching for the Colt .45's, Indians, Red Sox, White Sox and Giants. Sold or traded six times between ages 32 and 39, he had a habit of pitching his best ball in his first season with a new club. He never spent a day on the disabled list, and he threw his last big league pitch in 1974 at age 44 while serving as the Giants pitching coach.
Sources: Wikipedia · SABR BioProject · Baseball Almanac · BaseballCardPedia
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 296 | 0 | 8 | 117 | 88 | 48 | 18 | 17 | 0 |
| SGC | 18 | 0 | 1 | 4 | 9 | 2 | 2 | 0 | 0 |
Graded population — a scarcity guide, not a price. Snapshot 2026-07-09. Half-grades fold down (8.5→8). PSA counts are straight-graded (the +/Q qualifier rows are excluded).
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Frequently asked questions
What is the 1958 Topps Don McMahon card?
It is card #147 of the 1958 Topps Baseball set - Topps' sixth flagship issue: 494 cards numbered 1-495 (#145 was never issued), with die-cut player photos on solid-color backgrounds and the first team logos on Topps fronts. It pictures Don McMahon, Milwaukee Braves.
Is the 1958 Topps Don McMahon #147 a rookie card?
Yes - #147 is a rookie card, one of 103 in the 1958 Topps set.
How many graded copies of the 1958 Topps Don McMahon #147 are there?
PSA has graded 296 copies and SGC 18 as of the 2026-07-09 snapshot. Population is a scarcity guide, not a price - high-grade 1958s are notoriously tough because of the set's chronic centering and print-quality issues.
How many cards are in the 1958 Topps set?
494 issued cards, numbered 1-495 - #145 (Ed Bouchee) was pulled before release and never issued, leaving a permanent gap. The PSA master census counts 534 items: the 494 base cards plus 33 yellow-letter variations, 4 numerical checklist-back team cards, the 'Herrer' #433 error, and 2 unnumbered ad cards.
Sources: PSA CardFacts, Beckett, BaseballCardPedia, Baseball-Reference, PSA & SGC population reports, and hobby press-sheet research (Topps Archives, 2026). Card data compiled and maintained by T206Cards.com. Page last updated 2026-09-30.