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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)

5ccea0ab2beb2f03b0e60f9bfd5b589520d090b00f662631868891861e253daa

Not listedPSA 9 MINTBaseballPolygon

1978 Topps #450 Tom Seaver (PSA 9 MINT)

StatusNot currently listed — delisted Sep 20, 2026, 3:44 AM

View on Courtyard

Valuation

Platform estimateCourtyard Est. Value · not our FMV

$50.60

Insured valuenot reported by platform

—

Details

Type: Graded card
Grading company: PSA
Grade: 9 MINT
Cert number: 24299579
Set: Topps
Card number: 450
Year: 1978
Language: English
Category: Sports Cards

Price history — asks observed by Graded.Markets

First seen Sep 4, 2026, 7:28 AM · last synced 24 d ago · listed Sep 19, 2026, 4:43 AM.

Segment

Baseball

Blockchain

Polygon

Platform

Courtyard

Platform estimate source

Courtyard Est. Value

See all 4 tracked copies of this item →

Sep 17, 2026, 5:10 AM−1.9%$45.54
Sep 16, 2026, 7:41 PM+0.8%$46.44
Sep 15, 2026, 3:23 AM−0.2%$46.08
Sep 14, 2026, 2:38 AM+0.2%$46.17
Sep 13, 2026, 2:07 PM+1.8%$46.08
Sep 12, 2026, 10:26 PM−2.9%$45.27
Sep 9, 2026, 12:44 PM+13.7%$46.62
Sep 7, 2026, 7:39 PM−1.4%$40.99
Sep 7, 2026, 7:27 AM−2.9%$41.56
Sep 6, 2026, 7:43 PM−2.8%$42.78
Sep 6, 2026, 7:24 AM−2.7%$44.01
Sep 5, 2026, 7:12 PM−2.6%$45.23
Sep 5, 2026, 7:28 AM−2.6%$46.45
Sep 4, 2026, 7:13 PM−2.5%$47.67
Sep 4, 2026, 7:28 AM$48.90