US Scott #161 10c Brown Jefferson Secret Mark of 1873 SCARCE STUNNING GENUINE FINE This is a stunning and scarce US Scott #161 10c Brown Jefferson stamp, featuring the rare Secret Mark of 1873. This genuine stamp is in fine mint condition with its original gum, lightly hinged, which is exceptional for an item of this age. Collectors will appreciate the historical significance and the excellent preservation of this vintage philatelic piece. Perfect for enhancing any serious stamp collection.