1968 Topps · #537
Norm Siebern
estimateguide value · no realized compsas of 2026-06-14
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$50
- BGS 10$337
SCP sales volume 140 · as of 2026-06-14