1976 77 Topps · #56
Mike Riordan
estimateguide value · no realized compsas of 2026-06-21
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$20
- PSA 9$70
- BGS 10$3,063
SCP sales volume 52 · as of 2026-06-21
Source: /data/comp_v2/1976_1976-77-topps_56_mike_riordan.json