Front

Mark Duper

Name: Mark Duper
Brand: American Football
SKU: cmqvaqdw614tez84gz6jnhel8

Base

Score · #430 · 1991

eBaySearch Sold comps

PSA 10 $

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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

56.0

Collector

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Investor

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Speculation

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See pricing to unlock Collector, Investor & Speculation scores

Market

PSA10 / PSA9

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Active Listings

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PSA10 Mkt Cap

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PSA 10 Price

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30D PSA10

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90D PSA10

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Raw Price

$1

30D Raw

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90D Raw

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Prices by Grade & Grader

No pricing data available.

Population Reports

PSA Population

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

Opportunity Score

Active Listings

Similar Opportunities

Same Player

No image

Mark Duper #335 #335

1991 · Upper Deck

Mark Duper #359 #359

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.

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PSA 1

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Alternative Population

No BGS or CGC data yet.

PSA Full Grade Breakdown (1–10)

No PSA population data yet

1991 · Stadium Club

PSA10—

Pop—

Gem Rate🔒Investor

Opportunity

56

No image

Mark Duper #267 #267

1991 · Pacific

Mark Duper #16 #16

1991 · Wild Card

Mark Duper #219 #219

1991 · Pro Set Platinum

Mark Duper #97 #97

1992 · Stadium Club

Same Set / Product

No image

Jim Lachey #683 #683

1991 · Score

Matt Millen #8 #8

1991 · Score

Stephone Paige #283 #283

1991 · Score

Herschel Walker #348 #348

1991 · Score

Bill Romanowski #36 #36

1991 · Score

Keith Jackson #681 #681

1991 · Score

Similar Price Range

No image

Mark Duper #226 #226

1992 · Fleer

Mark Duper #84 #84

1992 · Upper Deck

John Taylor #282 #282

1991 · Score

Mark Duper #9 #9

1992 · Topps 1000 Yard Club

Mark Duper #85 #85

1992 · Pro Set Power

Mark Duper #25 #25

1992 · Wild Card