1977 Topps · #300
Jerry Koosman
estimateguide value · no realized compsas of 2026-06-22
No realized sales recorded yet — the SportsCardsPro guide value below is the current market reference for this card.
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