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Fair-market-value figures are computed by Graded.Markets using observed sales data — how we price. Platform estimates and insured values are reported by the source marketplace. All figures provided as-is. Not investment advice.

1978 Topps #450 Tom Seaver (PSA 9 MINT) — Graded.Markets

1978 Topps #450 Tom Seaver (PSA 9 MINT)

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For salePSA 9 MINTBaseballPolygon

1978 Topps #450 Tom Seaver (PSA 9 MINT)

Asking price$152USDCListed price updated 58 sec ago

Buy on Courtyard

Valuation

Platform estimateCourtyard Est. Value · not our FMV

$57.10

Insured valuenot reported by platform

—

Details

Type: Graded card
Grading company: PSA
Grade: 9 MINT
Cert number: 90814129
Set: Topps
Card number: 450
Year: 1978
Language: English
Category: Sports Cards

Price history — asks observed by Graded.Markets

First seen Jul 6, 2026, 6:08 PM · last synced 58 sec ago · listed Jul 27, 2026, 10:21 PM.

Segment

Baseball

Blockchain

Polygon

Platform

Courtyard

Platform estimate source

Courtyard Est. Value

See all 4 tracked copies of this item →

Jul 27, 2026, 11:05 PM+51.8%$152
Jul 6, 2026, 6:08 PM$100