1977 Topps · #300
Jerry Koosman
Comps coming soonsold comps coming soonas of 2026-06-22
Condition-aware breakdown
Comps coming soon
This card is catalogued. Sold-data coverage is still being added.
Population
Research pending — Rawcomps does not yet have a verified, card-level grading-population join for this record.
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Guide value · SportsCardsPro
price-guide reference, not realized sales- Raw$15
- PSA 9$32
- BGS 10$149
SCP sales volume 95 · as of 2026-06-22