There are 15 Mark Duffy trading cards tracked on HobbyCardIndex, spanning Soccer. The most valuable is the Mark Duffy [Red Mosaic] #296 at $7.44 raw.
Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/mark-duffyMark Duffy Cards
15 cards · Soccer
All Mark Duffy Cards
Mark Duffy [Red Mosaic] #296
$7.44
Mark Duffy [Blue Ice] #296
$6.29
Mark Duffy [White Sparkle] #296
$5.12
Mark Duffy [Purple Prizm] #296
$4.05
Mark Duffy [Red White Blue Prizm] #296
$4.00
Mark Duffy [Breakaway Prizm Teal] #296
$3.99
Mark Duffy [Blue Prizm] #296
$3.41
Mark Duffy [Breakaway Prizm] #296
$2.55
Mark Duffy [Red Prizm] #296
$2.25
Mark Duffy #296
$1.69
Mark Duffy [Green Wave] #296
$1.69
Mark Duffy [Breakaway Prizm Violet] #296
$0.25
Mark Duffy [Silver Prizm] #296
$0.25
Mark Duffy [Hyper Prizm] #296
$0.25
Mark Duffy [MultiColor Prizm] #296
$0.25