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Harmon Killebrew #120 (Baseball Cards 1966 Topps) — is it worth grading?

Is Harmon Killebrew #120 worth grading?

Baseball · Baseball Cards 1966 Topps · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Harmon Killebrew #120 sells for $28,800 against $5.57 raw: a $28,794 spread, 5171× the ungraded price. Even a PSA 9 ($810) 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)
$5.57
PSA 10
$28,800
PSA 9
$810
Gem premium
5171×
As of
Jul 11, 2026

Break-even by outcome and fee

Harmon Killebrew #120: 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$28,800+$28,769+$28,744+$28,644
PSA 9$810+$779+$754+$654
PSA 8$144+$113+$88.07−$11.93

Net = sale price − $5.57 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?

Harmon Killebrew #120: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$7,807+$7,752
50%$14,805+$14,749
75%$21,802+$21,747

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
Harmon Killebrew #120: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$37,440best55/4570/30
PSA 10$28,800−$8,64055/4575/25
CGC 10$17,280−$20,16055/4575/25
SGC 10$17,280−$20,16055/4575/25

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.

Harmon Killebrew #120 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$28,800$17,280$37,440$17,280
9.5$891
9$810
8$144
7$71.99

Run your own numbers

Should I pay this?

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

Other 1966 Topps cards worth checking

Full set checklist

Grading Harmon Killebrew #120 — FAQ

Is Harmon Killebrew #120 worth grading?

A PSA 10 Harmon Killebrew #120 sells for $28,800 against $5.57 raw: a $28,794 spread, 5171× the ungraded price. Even a PSA 9 ($810) 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 Harmon Killebrew #120 worth compared with raw?

A PSA 10 Harmon Killebrew #120 (Baseball Cards 1966 Topps) sells for about $28,800 versus $5.57 for a raw near-mint copy — a 5171× premium as of Jul 11, 2026.

Which grading company is best for Harmon Killebrew #120?

By resale value, BGS 10 leads at $37,440, ahead of PSA 10 at $28,800. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Harmon Killebrew #120 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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