Vintage

Professor Oak's Research

Expedition Base Set · #149 · English · released 2002

Raw market price

$2.22

7 days

▲ 2.3%

30 days

▲ 19.5%

90 days

▲ 35.9%

Last 30 recorded prices▲ 19.5%

low $1.86high $2.27

47MASTER score · steady

Graded prices & PSA population

Grade	Market price	PSA population
PSA 10	$271.00	19
PSA 9	$33.00	24
PSA 8	$13.00	16

PSA population recorded 2026-10-21 · total graded 68

Graded comps on record

$271.00

PSA 10

$86.00

CGC 10

$41.00

CGC 10

$33.00

PSA 9

$13.00

PSA 8

$10.00

SGC 9.5

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More from Expedition Base Set

Water Energy

$2.25

Master Ball

$2.31

Professor Elm's Training Method

$2.32

Dual Ball

$2.10

Market data recorded 2026-10-11 from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.