Is Jack Knott #13 worth grading?
Baseball · Baseball Cards 1940 Play Ball · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Jack Knott #13 sells for $4,074 against $12.01 raw: a $4,062 spread, 339× the ungraded price. Even a PSA 9 ($952) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $12.01
- PSA 10
- $4,074
- PSA 9
- $952
- Gem premium
- 339×
- As of
- Jul 11, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — PSA 10 | $4,074 | +$4,037 | +$4,012 | +$3,912 |
| PSA 9 | $952 | +$915 | +$890 | +$790 |
| PSA 8 | $865 | +$828 | +$803 | +$703 |
Net = sale price − $12.01 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.
Expected value — how often does it need to gem?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $1,732 | +$1,670 |
| 50% | $2,513 | +$2,451 |
| 75% | $3,293 | +$3,231 |
Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.
Which grader pays the most — and what a 10 takes
All centering standards →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| BGS 10 | $5,296 | best | 55/45 | 70/30 |
| PSA 10 | $4,074 | −$1,222 | 55/45 | 75/25 |
| CGC 10 | $2,444 | −$2,852 | 55/45 | 75/25 |
| SGC 10 | $2,444 | −$2,852 | 55/45 | 75/25 |
Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $4,074 | $2,444 | $5,296 | $2,444 | — |
| 9.5 | — | — | — | — | $1,133 |
| 9 | — | — | — | — | $952 |
| 8 | — | — | — | — | $865 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
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Grading Jack Knott #13 — FAQ
Is Jack Knott #13 worth grading?
A PSA 10 Jack Knott #13 sells for $4,074 against $12.01 raw: a $4,062 spread, 339× the ungraded price. Even a PSA 9 ($952) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
How much is a PSA 10 Jack Knott #13 worth compared with raw?
A PSA 10 Jack Knott #13 (Baseball Cards 1940 Play Ball) sells for about $4,074 versus $12.01 for a raw near-mint copy — a 339× premium as of Jul 11, 2026.
Which grading company is best for Jack Knott #13?
By resale value, BGS 10 leads at $5,296, ahead of PSA 10 at $4,074. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Jack Knott #13 need for a BGS 10?
BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.
Is your baseball card centered well enough to grade?
Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.
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