Slabline™
Graded-card protection score
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.
Not enough sales to chart yet.
A PSA 10 1974 Topps Nolan Ryan #20 is valued at about $71,065, a price-guide estimate rather than a recorded-sales median. Slabline holds 1 recorded PSA 10 sale of this card in October 2026; the most recent sold for $362 on October 28, 2026. At other grades it is valued at about $21 (Raw / Ungraded), $168 (Grade 7), $410 (Grade 8).
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Log scale — prices across these grades span more than 20×.
How much the 1974 Topps Nolan Ryan #20 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 |
|---|---|---|
| Raw / Ungraded | $21 | price guide |
| Grade 7 | $168 | 51 recorded sales |
| Grade 8 | $410 | 46 recorded sales |
| Grade 9 | $4,000 | price guide |
| Grade 9.5 | $4,400 | price guide |
| Gem Mint 10 | $71,065 | price guide |
Price guide data: SportsCardsPro
Price checked today · last recorded sale 1 months ago (PSA 9) · 20 sales in the last 90 days (all grades)
A dealer typically pays about 60% of market for a fast, guaranteed sale — the rest is the liquidity gap. An auction or private sale can recover more but takes time and fees. It’s why your Slabline Score weighs liquidity — and why insuring at market matters: a fire-sale recovers far less than the number you’re covered for.
Estimated from dealer buy-vs-sell spreads; actual offers vary by condition and demand.
Trading this card? Check the trade → · Ripping slab packs? See the real EV → · both sides priced per cert, liquidity-adjusted, free.
If you own this $71,065 card: a standard homeowners policy typically pays a few hundred dollars for stolen collectibles — and nothing at all for flood.
See what you'd actually get back →Prefilled with $71,065 · 20 seconds · no account
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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.