Front
1985 topps Garbage Pail Kids Original Series 1 Glossy #35b Rockin' Robert front
Back
Price history · PSA 6
— Hold· thin volume
PSA pop · this parallel
24
Card # 35b
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.
$35
PSA 6 · this grade
not currently listed on eBay
real comps est. — own older sales est. — never sold unsold
Last sold
$35
2026-07-04 · PSA 6
Avg Sale (30d)
across 0 sales
Volume (30d)
0 sales
-100% SALES COUNT vs prior 30d
Comp Sales (All)
46
all grades
vs 1 mo
vs 2 mo
vs 3 mo
High Low Avg sales Subject trend

🗑️ The Garbologist says…

Trending Up
The Garbologist has been digging through this one's trash.
  • 8 recorded sales · 1 in the last year · trades only a few times a year · moderate-confidence sample.
  • Its last few sales went $18 → $29 → $18 → $27 → $35 — a clear march higher.
  • Median moved +92% across the window ($14 → $28).
  • Census check: PSA has graded 170 of this card, and only 11.8% come back a 10 — tough to gem.
  • Net-net, the momentum points up — real buyers are paying more, more often. Not a promise, just what the garbage is telling us.

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.

Rockin' Robert — across every card

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

🧬 Should I slab it?

SLAB IT

About a 12% 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 ~$296 before the $79 PSA fee (fee only - excludes shipping & insurance), ~$217 after, vs a raw copy around $12 (est.). Grading pencils out here, especially if you hit the $1,490 ten.

Gem (PSA 10) rate
12%
this card · 170 graded
PSA 10 value
$1,490
if you hit the ten
Grading cost
$79
PSA Regular tier
Expected after grade
$217
vs raw ~$12 est.

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

GPK Price Guide
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