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Value by grade
How much the 1929 Godfrey Phillips Sporting Champions Jack Dempsey #15 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
$4.33est.
estimate
Grade 7
$5.11est.
estimate
Grade 8
$16est.
estimate
Grade 9
$31est.
estimate
Grade 9.5
$56est.
estimate
Gem Mint 10
$90est.
estimate
Estimated from this category's observed grade curve and this card's known value — no per-grade sales recorded yet. Estimates, not observed prices.
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.
Prices realized at REA, SCP Auctions and Huggins & Scott, read from their public archives. Each lot carries its own grade.
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Frequently asked
How much is a PSA 10 1929 Godfrey Phillips Sporting Champions Jack Dempsey #15 worth?
A PSA 10 1929 Godfrey Phillips Sporting Champions Jack Dempsey #15 is worth approximately $90, based on recent comparable sales. Card values fluctuate with the market.
What's the difference between a Grade 9 and a Gem Mint 10 Jack Dempsey?
For the 1929 Godfrey Phillips Sporting Champions Jack Dempsey #15, a Grade 9 is worth about $31 while a Gem Mint 10 is about $90 — the grade gap is roughly $59.
How does Slabline value the Jack Dempsey card?
Slabline values each graded card from recent comparable sales of the exact card and grade, aggregated across eBay, Heritage, Goldin, and Fanatics Collect. More sales yield a tighter, higher-confidence estimate.
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.
