$30.31
PSA 10 · 20%
Based on 5 sales
$15.07
PSA 9
$9.45
PSA 8
$2.28
Raw
The Professor's Research from Crown Zenith is currently valued at $2.28 raw and $30.31 in PSA 10 grade. Prices have increased 20% over the past 30 days.
Price History
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Price by Grade
Raw
$2.28
PSA 8
$9.45
PSA 9
$15.07
PSA 10
$30.31
Recent Sales
2026-04-11
· raw
· ebay
$2.99
2026-04-11
· raw
· ebay
$3.22
2026-04-10
· raw
· tcgplayer
$1.50
2026-04-08
· raw
· ebay
$1.51
2026-04-07
· raw
· ebay
$3.24
2026-04-06
· raw
· ebay
$4.99
2026-04-06
· raw
· ebay
$4.79
2026-04-05
· raw
· tcgplayer
$1.25
2026-04-03
· raw
· ebay
$5.74
2026-04-03
· raw
· ebay
$8.57
2026-04-02
· raw
· ebay
$3.00
2026-03-31
· raw
· ebay
$2.25
2026-03-31
· raw
· ebay
$2.00
2026-03-31
· raw
· ebay
$2.99
2026-03-31
· raw
· tcgplayer
$1.65
2026-03-31
· raw
· ebay
$3.12
2026-03-30
· raw
· tcgplayer
$2.01
2026-03-30
· psa 9
· ebay
$18.02
2026-03-28
· raw
· ebay
$2.99
2026-03-28
· raw
· ebay
$2.99
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