1939 Play Ball Jack Knott #91
1939
$10.52est. value (ungraded)
Prices updated 2026-10-18
Based on recorded sold prices how we price cards
Jack Knott price history
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Recent recorded prices
3 recorded price points for the 1939 Play Ball Jack Knott #91 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 18, 2026 | Market value | $10.52 |
| Oct 17, 2026 | Market value | $10.52 |
| Oct 16, 2026 | Market value | $10.52 |
Jack Knott prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $10.52 | Buy on eBay ↗ |
| PSA 7 | $31.99 | Buy on eBay ↗ |
| PSA 8 | $184.50 | Buy on eBay ↗ |
| PSA 9 | $554.88 | Buy on eBay ↗ |
| Grade 9.5 | $1,027.51 | Buy on eBay ↗ |
| PSA 10 | $3,689.01 | Buy on eBay ↗ |
| BGS 10 | $4,796.00 | Buy on eBay ↗ |
| CGC 10 | $2,213.00 | Buy on eBay ↗ |
| SGC 10 | $2,213.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1939 Play Ball Jack Knott #91 value & prices
The 1939 Play Ball Jack Knott #91 is a Baseball card released in 1939. Ungraded copies carry a market value of about $10.52.
An ungraded copy is worth around $10.52, a PSA 9 around $554.88, a PSA 10 (Gem Mint) around $3,689.01, a pristine BGS 10 around $4 and796.00. That's roughly a 351× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.
Is it worth grading?
With raw copies near $10.52 and top grades reaching $3,689.01, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.
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