— Holdnext 3 months: cards here were a coin flip, typically about flat
PSA pop · this parallel
6
Card # 508a⇄ 508BHi-Flyin' Bryan
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.
$25
PSA 9 · this grade
PSA 10 comp $52
no PSA 9 listed on eBay right now
RAW (UNGRADED) — NOT A GRADED VALUE
$3
4 raw sales used for this value view raw sales →
● 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
Loading…

🗑️ The Garbologist says…

Too Thin To Call
The Garbologist sniffed around the sales pile.
  • Only 2 recorded sales on the books — not enough for a trend without kidding ourselves. The last one changed hands at $38 on 2026-06-08.
  • 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.

Barry Bomber — across every card

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

🧬 Should I slab it?

SAVE YOUR MONEY

Only a 57% 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 ~$39 before the $80 PSA fee (fee only - excludes shipping & insurance), ~$-41 after - near or below a raw copy ($3 from 4 raw sales). Not worth grading unless you are confident it is a 10.

Gem (PSA 10) rate
57%
this card · 21 graded
PSA 10 value
$52
if you hit the ten
Grading cost
$80
PSA Regular tier
Expected after grade
$-41
vs raw $3 from 4 raw sales

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.

GPK Price Guide
← Back