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Slabline™All graded cards →What a PSA 10 is worth — price-guide estimate, with every recorded sale we hold.
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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 10 1977 Topps Nolan Ryan #6 is valued at about $49, a price-guide estimate rather than a recorded-sales median. Slabline holds 4 recorded PSA 10 sales of this card between January 2024 and October 2026; the most recent sold for $3,100 on October 11, 2026.
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Log scale — prices across these grades span more than 20×.
How much the 1977 Topps Nolan Ryan #6 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 |
|---|---|---|
| Gem Mint 10 | $49est. | estimate |
Price guide data: SportsCardsPro
Estimated from this category's observed grade curve and this card's known value, not from this card's own sales at each grade (the recorded sales are above). Estimates, not observed prices.
Price checked today · last recorded sale 1 months ago at Goldin (PSA 10) · 12 sales in the last 90 days (all grades)
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