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1988 Topps Garbage Pail Kids Series 13 Solve This Puzzle Back #518b Over Etan front
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Price history · PSA 10
image from latest verified sale
1988 GARBAGE PAIL KIDS STICKERS

OVER ETAN

Solve This Puzzle Back
View all OVER ETAN cards →

PSA 10

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Pop
21
Card # 518b
Garbage Pail Kids
TCA Value iTCAxis 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.
Confidence
★★★★★
See Active PSA 10 See Sold PSA 10 View on PSA
real comps est. — own older sales est. — never sold unsold
Last Sale
Avg Sale (30d)
across — sales
Volume (30d)
— vs prior 30d
Comp Sales (All)
all grades
vs 1 mo
vs 2 mo
vs 3 mo
High Low Avg sales Subject trend

🧬 Should I slab it?

Coin flip

Roughly a 57.1% gem rate on this card's own PSA pop. After the $19 grade it's about even with a raw copy — a coin flip that only pays off on a high grade.

Gem (PSA 10) rate
57.1%
this card · 21 graded
PSA 10 value
$37
if you hit the ten
Grading cost
$19
PSA Value tier
Expected after grade
$6
vs raw ~$2 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.

🗑️ The Garbologist says…

Steady
The Garbologist popped the lid on this card. Liquidity is moderate here — 6 recorded sales in the last year, 6 over the past year changing hands. The trash trajectory: the 90-day median is up 27%. Biggest recent haul: $43 on 2026-03-28. Census check: PSA has graded 31 of this card, and only 67.7% come back a 10 — gems fairly readily. 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.

Value by grade — Solve This Puzzle Back (this card) & other varieties
Solve This Puzzle Back pop 32
PSA 10 $37 pop 21
PSA 9 $16 pop 5
Color In The Letters Back pop 21
PSA 10 $15 pop 12
PSA 9 $15 pop 2
PSA 8 $7 pop 6
GPK Price Guide