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Garbage Mouth Gilbert #428b 1987 Garbage Pail Kids Series 11 · PSA 9
View all Garbage Mouth Gilbert cards →PSA pop11
All grades · value and PSA population
GARBAGE MOUTH GILBERT ACTIVEno PSA 9 listed on eBay right now
RAW (UNGRADED) — NOT A GRADED VALUE
$3
11 raw sales used for this value
view raw sales →
Front
Back
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.
🗑️ The Garbologist says…
Too Thin To Call
Straight from the Garbologist's clipboard:
- Only 2 recorded sales on the books — not enough for a trend without kidding ourselves. The last one changed hands at $23 on 2026-07-18.
- With this little to go on, the honest answer is we can't call a direction — one auction would swing the whole read.
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.
Garbage Mouth Gilbert — across every card
Subject page →Every Garbage Mouth Gilbert card we track — how the character is moving, not just this one grade.
🧬 Should I slab it?
Only if you're confident it's a 10About 1 in 3 copies of 1987 Original Series 11 cards get a 10, and a 9 is worth $21 — less than the $92 it costs to grade.
Expected value if graded$1 (after $92 all-in cost)
Raw value today$3 (from 11 raw sales)
VerdictOnly if you're confident it's a 10
Break-even: you need about a 39% chance of a PSA 10 (1987 Original Series 11 cards: 38%).
Chance of a PSA 10
38%
1987 Original Series 11 cards · 1,545 graded
PSA 10 value
$213
today · ~$213 by Feb 13, 2027
PSA 9 value
$21
today · ~$21 by Feb 13, 2027
All-in cost
$92
PSA fee $60 + shipping both ways $32
How these numbers work
All-in cost $92: PSA Standard tier fee $60 per card, insured shipping to PSA ~$12, PSA insured return shipping ~$20. Sending it to your PSA Vault instead skips return shipping (vault intake and storage are free): ~$72 all-in, so a graded copy would net ~$21.
Grade odds (1987 Original Series 11 cards, 1,545 PSA-graded): 10 · 38%, 9 · 44%, 8 · 10%, 7 or lower · 8%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 13, 2027): today's values (the set has no clear 3-month trend).
Expected value if graded = each grade's chance × its value, minus the all-in cost. A guide, not a guarantee — centering and corners on your copy decide the grade.
Grade odds (1987 Original Series 11 cards, 1,545 PSA-graded): 10 · 38%, 9 · 44%, 8 · 10%, 7 or lower · 8%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 13, 2027): today's values (the set has no clear 3-month trend).
Expected value if graded = each grade's chance × its value, minus the all-in cost. A guide, not a guarantee — centering and corners on your copy decide the grade.
Garbage Mouth Gilbert #428b 1987 Garbage Pail Kids value by grade
| Grade | Value | Sales | PSA pop |
|---|---|---|---|
| PSA 10 | $213 | 1 | 2 |
| PSA 9 | $21 | 2 | 11 |
| PSA 8 | $11 | 1 | 4 |
| PSA 6 | $6 | 1 | 2 |
Every grade of this card on one page. Est. = no sale at that grade yet. Tap a grade above to switch the whole page to it.
