Early Bert #337a

Checklist
ScarcityPSA has graded about as many base copies
PSA has graded 25 of the base card and 25 of this parallel (all grades). Graded counts are not print runs.
View all Early Bert cards →
Active on eBay · for sale now
PSA pop14

PSA 9 · 1987 Garbage Pail Kids Original Series 9 →

— Hold · next 3 monthsNo sale in the last 3 months, so there is no fresh price to read; it stays a hold until it sells again.
PSA pop · this parallel
14
Card # 337a⇄ 337BRotten Robin
GPK Price Guide Value iGPK Price Guide Value is a recency-weighted market value from REAL sales of this exact card+grade (recent comps count most, outliers stripped) — steadier and harder to game than a single 'last sale', which can be one lucky auction or a shill bid. When a card has few or no recent comps, we estimate transparently from its own older sales, its other grades, and comparable cards (same subject/set/rarity tier), factoring subject trend and scarcity — and we LABEL it as an estimate until real sales arrive.
$16
PSA 9 · this grade▶ steady
PSA 10 comp $63
🟢 lowest on eBay: $56.98 all-in
🛒 1 listing on eBay now PSA 9 SLAB
● real comps ● est. — own older sales ● est. — never sold ● unsold
Price history · PSA 9
On-the-record sales go back as far as PSA reports them — late 2017 for GPK — plus eBay-tracked and raw sales as they land.
DatePriceGradeCertType
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🗑️ The Garbologist says…

Steady
The Garbologist popped the lid on this card.
  • 7 recorded sales · 3 in the last year · trades only a few times a year · moderate-confidence sample.
  • The recent trail reads $8 → $8 → $20 → $16 → $8 — choppy but broadly rangebound.
  • Heads up: the last recorded sale ($8 on 2026-01-16) landed 50% below our current value — weigh it as a single data point.
  • Net-net, it's holding its ground — steady demand, no fireworks either way.

Automated analysis generated from this card’s real recorded sales and PSA population data — no opinions, no predictions guaranteed. Entertainment and research only, not financial advice.

Early Bert — across every card

Subject page →
Every Early Bert card we track — how the character is moving, not just this one grade.

🧬 Should I slab it?

NO RAW PRICE YET

About a 28% gem (PSA 10) rate on this card's own PSA pop - graded pop is self-selected (best copies get submitted), so a random raw likely grades lower. Expected value ~$28 before the $80 PSA fee (fee only - excludes shipping & insurance), ~$-52 after. No raw (ungraded) sale of this card is on record, so there is no raw price to compare grading against yet.

Gem (PSA 10) rate
28%
this card · 25 graded
PSA 10 value
$63
if you hit the ten
Grading cost
$80
PSA Regular tier
Expected after grade
$-52
no raw sale on record to compare

Probability-weighted across grades using PSA population (this card) as a proxy for cut & print quality, minus the grading fee. A guide, not a guarantee — centering and eye-appeal on your specific copy decide the grade.

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