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Slabline™All graded cards →What a PSA 4 is worth — from its recorded sales.
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eBay, Fanatics Collect, Alt, MySlabs, Goldin and Heritage records arrive through CardHedge's licensed feed; REA, SCP and Huggins & Scott are read from each house's published prices realized. More eBay, Goldin and auction sales come from The Card API.
Sales seen on eBay, Fanatics Collect, Goldin, Heritage, Alt and MySlabs, via CardHedge. "Marketplace" is a real CardHedge sale whose venue is not identified yet.
A PSA 4 1979 O-Pee-Chee Wayne Gretzky #18 is worth about $1,750, the median of its 5 most recent recorded PSA 4 sales. Slabline holds 200 recorded PSA 4 sales of this card between June 2024 and November 2026; the most recent sold for $1,750 on November 6, 2026.
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How much the 1979 O-Pee-Chee Wayne Gretzky #18 is worth at each grade.
How to read this page: an estimate is Slabline's figure for a grade, built from the source named beside it. An observed price is the latest price a grader's copy of this card fetched, one cell per grader and grade in the grid below. A recorded sale is a dated transaction with its venue. The headline above is the estimate for this slab's own grade.
| Grade | Value | Built from |
|---|---|---|
| Grade 4 | $1,750 | 5 recorded sales |
Price guide data: SportsCardsPro
Price checked today · last recorded sale 6 days ago (PSA 4) · 73 sales in the last 90 days (all grades)
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If you own this $1,750 card: a standard homeowners policy typically pays a few hundred dollars for stolen collectibles — and nothing at all for flood.
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Add to my collection — free →Values are informational estimates built from recent comparable sales — not a certified appraisal, insurance, or financial advice. Card values fluctuate; figures are a snapshot and may differ from a realized sale.