Front
1987 Topps Garbage Pail Kids Original Series 11 #450b Mason Mace front
Back
Price history · PSA 10
— Hold· thin volume
PSA pop · this parallel
24
Card # 450b
Garbage Pail Kids
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.
$39
PSA 10 · highest-graded comp▼ -56%
real comps est. — own older sales est. — never sold unsold
Last sold
$29.99
2026-02-01 · PSA 10
Avg Sale (30d)
across 0 sales
Volume (30d)
0 sales
— vs prior 30d
Comp Sales (All)
14
all grades
vs 1 mo
vs 2 mo
vs 3 mo
High Low Avg sales Subject trend

🗑️ The Garbologist says…

Cooling Off
The Garbologist has been digging through this one's trash.
  • 14 recorded sales · 5 in the last year · trades only a few times a year · moderate-confidence sample.
  • Following the trash: $35 → $35 → $39 → $35 → $30 — a steady drift lower.
  • Median moved -56% across the window ($80 → $35).
  • Heads up: the last recorded sale ($30 on 2026-02-01) landed 23% below our current value — weigh it as a single data point.
  • Net-net, the heat is coming off — recent sales are softening. Could be a breather, could be a top; the trash doesn't say which.

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.

Mason Mace — across every card

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

🧬 Should I slab it?

BORDERLINE

Roughly a 75% gem 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 ~$34 before the $19 PSA fee (fee only - excludes shipping & insurance), ~$15 after - about even with a raw copy ($5 (est.)). A coin flip that only pays off on a high grade.

Gem (PSA 10) rate
75%
this card · 32 graded
PSA 10 value
$39
if you hit the ten
Grading cost
$19
PSA Value tier
Expected after grade
$15
vs raw ~$5 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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