Professor Birch's Observations

Primal Clash · #159/160 · Rare Ultra · 2015

$13.69

Market price ▲ 3.0% (30d)

Prices as of Jul 26, 2026

SupporterArt · Hitoshi Ariga

289graded pop

5%gem rate

109.6×PSA 10 vs raw

-8%off ATH $12.00 · Apr 2026

+$81.36EV to grade — worth it

Price history

159 Full Art▼ 0.2% 7d$13.69

Low $8.35Mid $12.85

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Graded values

updated 2026-07-26

Grade 6 est.$10.46

Grade 5 est.$8.81

Grade 4 est.$7.27

Grade 3 est.$6.06

Grade 2 est.$4.95

Grade 1 est.$4.18

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

PSA 10 price history$1,499.99

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-07-07

PSA209 graded · 12 gem 10

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CGC80 graded · 1 gem 10

12345678910

Population data from PriceCharting, updated monthly.

How much is Professor Birch's Observations #159/160 worth?

As of July 27, 2026, Professor Birch's Observations #159/160 from Primal Clash sells for around $13.69 in raw, ungraded condition.

Grading changes the math on this one: a PSA 10 is valued around $1,499.99, roughly 109.6x the raw price, while a PSA 9 sits near $55.05. 209 copies have been graded to date, and 6% of them came back a 10 — worth knowing before you pay grading fees.

Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.