Expedition Base Set/#4/165Gembook Valuei·PSA 9As of Jun 14, 2026 · updated daily at 6:00 AM PT
Confidence Strong · weighted median of 7 verified sales
Fair range $650 – $790
Confidence Strong · weighted median of 7 verified sales
Fair range $650 – $790
Blastoise
$700#1486 Overall#114 in Expedition Base Set▲ 20.1%SET · 30D
REVERSE-HOLO · PSA 9G
Price History▲ 163.3%
Details
SetExpedition Base Set
Number4 / 165
Released2002
PSA population130
Price confidenceStrong
Fair range$650 – $790
Last sale$790 · Jun 2, 2026
Live listings0 · checked daily
Recent sales
7 verified · 21 shownJun 2, 2026eBay$790+$90
May 22, 2026eBay$700+$0
May 18, 2026eBay$650−$50
May 12, 2026eBay$489−$211
Apr 12, 2026eBay$710+$10
Live listings
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How we price this
Gembook Value is the weighted median of 7 verified eBay sales. Shill bids, unpaid items, and outliers are filtered out — the numbers you see actually cleared.