Mark Duper / Mark Clayton Cards
The complete Mark Duper / Mark Clayton checklist: 2 cards — cards spanning 1989–2019.
Data updated June 22, 2026.
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football
2019
Score 20191 card
1989
Score 19891 card
Frequently Asked Questions about Mark Duper / Mark Clayton Cards
Does Mark Duper / Mark Clayton have a rookie card?
No confirmed Mark Duper / Mark Clayton rookie cards are currently in the AgentGrail catalog. The catalog covers 2 Mark Duper / Mark Clayton cards in total. Check back as we continue to add new sets.
What years were Mark Duper / Mark Clayton cards made?
The AgentGrail catalog includes Mark Duper / Mark Clayton cards from 1989 through 2019, totaling 2 cards across all sets and brands. The earliest cards date from 1989 and the most recent are from 2019.
Where can I buy Mark Duper / Mark Clayton cards?
eBay is the largest marketplace for Mark Duper / Mark Clayton football cards, offering both raw and graded (PSA, BGS, SGC) copies. Use the "Find on eBay" buttons on this page to search current listings. For investment-grade copies, look for PSA 10 certified cards.
Answers are grounded in AgentGrail catalog data and recent eBay market comps.
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Compiled by the AgentGrail team · Data refreshed June 22, 2026