Midpoint - Card Centering Tool
John Koniszewski #24 (Football Cards 1948 Bowman) — is it worth grading?

Is John Koniszewski #24 worth grading?

Football · Football Cards 1948 Bowman · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 John Koniszewski #24 sells for $6,814 against $24.99 raw: a $6,789 spread, 273× the ungraded price. Even a PSA 9 ($1,023) 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)
$24.99
PSA 10
$6,814
PSA 9
$1,023
Gem premium
273×
As of
Jul 11, 2026

Break-even by outcome and fee

John Koniszewski #24: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$6,814+$6,764+$6,739+$6,639
PSA 9$1,023+$973+$948+$848
PSA 8$505+$455+$430+$330

Net = sale price − $24.99 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?

John Koniszewski #24: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$2,471+$2,396
50%$3,919+$3,844
75%$5,366+$5,291

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
John Koniszewski #24: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$8,858best55/4570/30
PSA 10$6,814−$2,04455/4575/25
CGC 10$4,088−$4,77055/4575/25
SGC 10$4,088−$4,77055/4575/25

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.

John Koniszewski #24 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$6,814$4,088$8,858$4,088
9.5$1,880
9$1,023
8$505
7$336

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other 1948 Bowman cards worth checking

Full set checklist

Grading John Koniszewski #24 — FAQ

Is John Koniszewski #24 worth grading?

A PSA 10 John Koniszewski #24 sells for $6,814 against $24.99 raw: a $6,789 spread, 273× the ungraded price. Even a PSA 9 ($1,023) 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 John Koniszewski #24 worth compared with raw?

A PSA 10 John Koniszewski #24 (Football Cards 1948 Bowman) sells for about $6,814 versus $24.99 for a raw near-mint copy — a 273× premium as of Jul 11, 2026.

Which grading company is best for John Koniszewski #24?

By resale value, BGS 10 leads at $8,858, ahead of PSA 10 at $6,814. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does John Koniszewski #24 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 football 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.

Check my card free