1940 Superman
1940 Gum Inc Superman #18 Prison Break

Buy it now on eBay $450.00 ›cheapest of 3 live listings on eBay
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3live listings
1confirmed sales
9grades tracked
Every grade of this card
Raw and graded copies tracked side by side. Prices are asking prices and current bids; comps are confirmed sales.
| Grade | Live | Asking range | Last confirmed sale | Est. grade (ours) |
|---|---|---|---|---|
| Raw | 1 | $450.00 | — | 1.0 |
| GMA ? | 0 | — | — | — |
| PSA 1 (MK) | 0 | — | — | — |
| PSA 1.5 | 1 | $1,299.00 | — | — |
| SGC 2 | 0 | — | — | — |
| SGC 3 | 0 | — | $306.01 2026-10-19 | — |
| PSA 4 | 0 | — | — | — |
| PSA 5 | 1 | — | — | — |
| PSA 5.5 | 0 | — | — | — |
Confirmed sales — all grades
| Date | Grade | Price | Confidence |
|---|---|---|---|
| 2026-10-19 | SGC 3 | $306.01 | HIGH |
Index grading notes
Estimated grades are this site’s opinion, derived from the seller’s photo and expressed on the PSA scale. Not affiliated with or endorsed by PSA; not a guarantee of any grading outcome.

Estimated grade: 1 (1–1) · HIGH confidence · asking $450.00
The seller explicitly discloses trimming, and the card's edges appear unnaturally straight and sharp for a 1940 Gum Inc. issue — consistent with trimming. PSA assigns a grade of Authentic (altered) or PR-1 to trimmed cards and will not grade them numerically; for estimation purposes this maps to grade 1 (PR/FR) at best. Centering cannot be meaningfully evaluated because trimming distorts all border measurements. Corners and surface appear to show some age-appropriate wear but are irrelevant given the alteration. A trimmed card is essentially ungradeable by PSA under standard numeric grading and will be returned as Authentic-Altered if submitted.