
Is Bill Monbouquette #429 worth grading?
Baseball · Baseball Cards 1966 Topps · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Bill Monbouquette #429 sells for $4,080 against $1.79 raw: a $4,078 spread, 2279× the ungraded price. Even a PSA 9 ($288) 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)
- $1.79
- PSA 10
- $4,080
- PSA 9
- $288
- Gem premium
- 2279×
- As of
- Sep 2, 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 | $4,080 | +$4,053 | +$4,028 | +$3,928 |
| PSA 9 | $288 | +$261 | +$236 | +$136 |
| PSA 8 | $29.14 | +$2.35 | −$22.65 | −$123 |
Net = sale price − $1.79 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% | $1,236 | +$1,184 |
| 50% | $2,184 | +$2,132 |
| 75% | $3,132 | +$3,080 |
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 |
|---|---|---|---|---|
| PSA 10 | $4,080 | best | 55/45 | 75/25 |
| CGC 10 | $2,448 | −$1,632 | 55/45 | 75/25 |
| SGC 10 | $2,448 | −$1,632 | 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 →Swipe the table for the other grading companies →
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 Bill Monbouquette #429 — FAQ
Is Bill Monbouquette #429 worth grading?
A PSA 10 Bill Monbouquette #429 sells for $4,080 against $1.79 raw: a $4,078 spread, 2279× the ungraded price. Even a PSA 9 ($288) 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 Bill Monbouquette #429 worth compared with raw?
A PSA 10 Bill Monbouquette #429 (Baseball Cards 1966 Topps) sells for about $4,080 versus $1.79 for a raw near-mint copy — a 2279× premium as of Sep 2, 2026.
Which grading company is best for Bill Monbouquette #429?
By resale value, PSA 10 leads at $4,080, ahead of CGC 10 at $2,448. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Bill Monbouquette #429 need for a PSA 10?
PSA publishes 55/45 front and 75/25 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.
Best on iPhone & Android
Check your baseball card in the Midpoint app
Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.




