Expedition Base Set/#37/165Gembook Value·PSA 10
Blastoise
$4,250
Details
Price confidence
SetExpedition Base Set
Number37 / 165
Released2002
PSA population52
Fair range$4,250–$4,250
Last sale$4,250 · Sep 9, 2026
Live listings0 · checked daily
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Gembook Value is the weighted median of 3 verified eBay sales. Shill bids, unpaid items, and outliers are filtered out — the numbers you see actually cleared.