1961 Topps #437 Checklist 430-506 (6th Series)
About this card
The seven checklist cards (#17, 98, 189, 273, 361, 437, 516) were the first numbered checklists in a Topps set. The first was printed with the series it lists; each later checklist was printed with the series before the one it lists.
The story on this card
The set's sixth checklist runs 430 through 506 -- Mazeroski, Cepeda, Duke Snider, Gil Hodges -- on a card that itself belongs to print series 5. 1961 was the first year Topps numbered checklists into the set, one for each of the seven series. Two states are collected here, separated by a single line: the first printing lists 440 as Louis Aparicio, the corrected one spells the White Sox shortstop's name Luis. The photo crop differs with it, the umpire's mask cut off on the error and fully visible on the fix. The set's scarce run starts at 523. The catch is condition: checklists were made to be marked, and unmarked copies are what collectors chase.
Sources: Wikipedia · BaseballCardPedia · Cardboard Connection · Trading Card Database
Print variations
Two states of #437 are tracked individually: 437a - #440 Is Louis Aparicio and 437b - #440 Is Luis Aparicio. The difference is on the front of the card (error correction).
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 |
|---|---|---|---|---|---|---|---|---|---|
| 437a - #440 Is Louis Aparicio | |||||||||
| PSA | 430 | 0 | 41 | 226 | 95 | 34 | 22 | 12 | 0 |
| SGC | 83 | 0 | 3 | 41 | 18 | 9 | 9 | 3 | 0 |
| 437b - #440 Is Luis Aparicio | |||||||||
| PSA | 501 | 1 | 34 | 256 | 123 | 50 | 22 | 13 | 2 |
| SGC | 14 | 0 | 0 | 2 | 3 | 6 | 1 | 2 | 0 |
Graded population — a scarcity guide, not a price. Data as of 2026-09-04. PSA counts are straight grades only; PSA half grades (PSA 1.5 among them) and qualified slabs are not included. SGC half grades fold down (8.5→8). Where a grader registers a variation separately its population is listed under that variation. Slabs of the two cards printed #463 are joined by description, never by number alone.
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Frequently asked questions
What is the 1961 Topps #437 card?
It is card #437 of the 587-card 1961 Topps Baseball set, Checklist 430-506 (6th Series). The seven checklist cards (#17, 98, 189, 273, 361, 437, 516) were the first numbered checklists in a Topps set. The first was printed with the series it lists; each later checklist was printed with the series before the one it lists.
Does 1961 Topps #437 have variations?
Yes. Two states are catalogued and tracked individually: 437a - #440 Is Louis Aparicio (The checklist spells #440 "Louis" Aparicio - the error state, listed first by PSA and TCDB; both states are common) and 437b - #440 Is Luis Aparicio (Corrected to "Luis" Aparicio). Owning any one of them fills the #437 slot; the master set counts each state.
How many cards are in the 1961 Topps Baseball set?
587 cards, tracked as 596 collectible states. Numbers run from 1 to 589, but #426, #587 and #588 were never issued and two different cards were printed #463 - Jack Fisher and the Milwaukee Braves Team card, catalogued 463b - and eight cards carry catalogued print variations that the master set counts separately.
Sources: Trading Card Database, PSA CardFacts, Cardboard Connection, The Topps Archives, 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.