Mark Duper Football Trading Card Database
1989 Score Football Checklist, Set Info, Boxes, Top Rookies, Buying Guide
1989 Score with Supplemental Miami Dolphins Team Set with Dan Marino - Mark Clayton & Mark Duper - 13 NFL Cards : Collectibles & Fine Art
Mark Duper Football Trading Card Database
1960-1989 Miami Dolphins Football Trading Cards offered. - RCSportsCards
Dan Marino Cards Baseball Cards Set checklist, prices, values & information
Best receiving tandems of all time
South Florida Sports Paradise: Happy Birthday Mark Clayton
Mark Duper Football Trading Card Database
Mark Duper Football Cards