$34.71
PSA 10 · 21%
Based on 5 sales
$17.19
PSA 9
$6.75
PSA 8
$5.00
PSA 7
$4.31
Raw
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The Professor's Research from Crown Zenith is currently valued at $4.31 raw and $34.71 in PSA 10 grade. Prices have increased 21% over the past 30 days.
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Price History
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Price by Grade
Raw
$4.31
PSA 7
$5.00
PSA 8
$6.75
PSA 9
$17.19
PSA 10
$34.71
Recent Sales
2026-04-19
· raw
· ebay
$3.51
2026-04-19
· raw
· ebay
$2.99
2026-04-18
· raw
· ebay
$2.59
2026-04-18
· raw
· ebay
$4.30
2026-04-17
· raw
· ebay
$4.29
2026-04-15
· raw
· ebay
$2.99
2026-04-15
· raw
· tcgplayer
$1.96
2026-04-14
· raw
· tcgplayer
$2.38
2026-04-14
· raw
· ebay
$2.99
2026-04-14
· raw
· ebay
$3.52
2026-04-14
· raw
· ebay
$2.99
2026-04-13
· raw
· ebay
$3.52
2026-04-12
· raw
· ebay
$1.99
2026-04-11
· raw
· ebay
$2.99
2026-04-11
· raw
· ebay
$3.22
2026-04-10
· raw
· tcgplayer
$1.50
2026-04-10
· raw
· ebay
$5.72
2026-04-08
· raw
· ebay
$1.51
2026-04-07
· raw
· ebay
$1.51
2026-04-07
· raw
· ebay
$3.24
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