Alvin Harper Base #634 · Upper Deck (1991) | PopHunter

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Alvin Harper

Name: Alvin Harper
Brand: American Football
SKU: cmqvaprr51451z84gr84hk8fn

BaseRC

Upper Deck · #634 · 1991

eBaySearch Sold comps

PSA 10 $

$30

PSA 10 Pop

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Gem Rate

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30D Change

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Market data as of Jun 25, 2026

Opportunity

57.0

Collector

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Investor

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Speculation

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Market

PSA10 / PSA9

1.78x

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PSA10 Mkt Cap

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PSA 10 Price

$30

30D PSA10

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90D PSA10

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Raw Price

30D Raw

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90D Raw

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PSA 10

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PSA 9

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PSA 8

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PSA 7

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PSA 6

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PSA 5

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PSA 4

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PSA 3

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PSA 2

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

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alvin harper #24 #24

1991 · Upper Deck

PopHunter surfaces potentially undervalued scarcity and relative value signals. This is not financial or investment advice. Always do your own research before purchasing graded cards.

Alvin Harper

Market

Prices by Grade & Grader

Population Reports

PSA Population

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Similar Opportunities

Same Player

Alternative Population

Same Set / Product

Similar Price Range

10 / Gem	$30	$40	$18	$18
9.5	—	$30	—	—
9	$17	—	—	—
8	$10	—	—	—