1978 79 Topps · #28
Howard Porter
estimateguide value available · sold comps coming soonas of 2026-08-15
Comps coming soon. The SportsCardsPro guide value below is a market reference, not a realized sale.
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$1
- PSA 7$4
- PSA 8$8
- PSA 9$15
- PSA 9.5$17
- PSA 10$154