Professor Birch's Observations #78 PSA 10: price & population
PSA 10
$97.00
Raw
$14.95
PSA 10 pop
30
Gem rate
55.6%
A PSA 10 Professor Birch's Observations #78 from Japanese Tidal Storm sells for $97.00 — a 549% premium over the $14.95 raw price. PSA has graded this card 54 times; 30 came back a 10 (55.6% gem rate), and 17 a PSA 9.
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The September 2026 Grade Report ranks the 30 most profitable cards to grade right now, by expected profit after every fee. Same math as this page, run across the whole market. $19, one time, instant.
See the top 30 →Prices from real completed sales, updated daily. Population data from PSA's public population report.
