Expedition Base Set/#4/165Gembook Value·PSA 10
Blastoise
$3,100
Details
Price confidence
SetExpedition Base Set
Number4 / 165
Released2002
PSA population17
Fair range$2,200–$5,400
Last sale$5,400 · Jun 6, 2026
Live listings0 · checked daily
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How we price this
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.