1969 Topps #511 Diego Segui
About Diego Segui
Segui's 1969 Topps card, #511, comes from the set's fifth series. It is a Seattle Pilots card, from a franchise that lasted one season before moving to Milwaukee, which is most of why collectors want it. Seattle took him from Oakland with the 14th pick of the October 1968 expansion draft and he answered with 12-6 and a 3.35 ERA in 66 games, eight of them starts, for a club that went 64-98 and finished last in the American League West; his teammates voted him the Pilots' Most Valuable Player. The card comes in two collectible states, his first name printed in yellow on one and in white on the other.
Diego Segui, a right-handed forkball specialist born in Holguin, Cuba, pitched in the majors from 1962 to 1977 for the Kansas City and Oakland Athletics, Washington Senators, Seattle Pilots, St. Louis Cardinals, Boston Red Sox, and Seattle Mariners. Signed by Cincinnati in 1958 and released that April, he was sold to the Athletics by Tucson in September and worked up their farm system before debuting on April 12, 1962. He finished 92-111 with a 3.81 ERA, 71 saves and 1,298 strikeouts, and led the American League with a 2.56 ERA for Oakland in 1970. His only World Series work came in relief for Boston in Game Five of 1975, a series Cincinnati won in seven games. He is the only man to play for both Seattle franchises, pitching in relief in the Pilots' first game in 1969 and taking the loss in the Mariners' first game on April 6, 1977, the start that earned him the name 'the Ancient Mariner.' He later pitched a decade in the Mexican League and still holds the Venezuelan winter league career strikeout record, which brought him induction into the Venezuelan Baseball Hall of Fame in 2003. His son David Segui also reached the majors. Segui died in 2025 at 87.
Sources: SABR BioProject · Baseball-Reference · Baseball Almanac (1) · Baseball Almanac (2)
Print variations
Two states of #511 are tracked individually: 511a - First Name In Yellow and 511b - First Name In White. The difference is on the front of the card (name color).
States catalogued by the PSA master set registry and the Trading Card Database; each is tracked here individually.
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Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| 511a - First Name In Yellow | |||||||||
| PSA | 230 | 5 | 37 | 101 | 41 | 25 | 10 | 11 | 0 |
| SGC | 4 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 |
| 511b - First Name In White | |||||||||
| PSA | 153 | 0 | 2 | 27 | 29 | 33 | 33 | 28 | 1 |
| SGC | 17 | 0 | 0 | 0 | 1 | 3 | 8 | 5 | 0 |
Graded population — a scarcity guide, not a price. Data as of 2026-09-04. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted. Where a grader registers a variation separately its population is listed under that variation.
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Related cards
More Seattle Pilots cards:
- #17 Mike Marshall
- #42 Tommy Harper
- #62 Chico Salmon
- #83 Mike Ferraro
- #111 Johnny Morris
- #135 Tommy Davis
- #178 Ray Oyler
- #209 Larry Haney
- #233 Steve Barber
- #254 Joe Schultz
- #285 Don Mincher
- #301 Darrell Brandon
- #322 Jose Vidal
- #346 Wayne Comer
Frequently asked questions
What is the 1969 Topps #511 card?
It is card #511 of the 664-card 1969 Topps Baseball set, picturing Diego Segui of the Seattle Pilots.
Does 1969 Topps #511 have variations?
Yes. Two states are catalogued and tracked individually: 511a - First Name In Yellow ("Diego" prints in yellow letters on the front - the common state of this fifth-series card) and 511b - First Name In White ("Diego" prints in white letters - the scarce state of the pair; white letters are the premium side on all 23 of the set's name-color variations (#440-511)). Owning any one of them fills the #511 slot; the master set counts each state.
How many cards are in the 1969 Topps Baseball set?
664 cards, tracked as 696 collectible states. Numbers run from 1 to 664 with none skipped and no printed number shared by two cards; 32 cards carry catalogued print variations that the master set counts separately, 23 of them the yellow- and white-letter name pairs of #440-511.
Sources: Trading Card Database, PSA CardFacts, 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 2026-10-12.