Lot
3181 
Envelope, 1874, Plimpton Issue, 7¢ vermilion, unused full corner 35 x 39mm, bright & fresh, Extremely Fine and choice, a rare stationery item with only a handful known; with 2001 P.S.E. certificate. UPSS No. 536.Scott No. U185 $1,200.
Realized: $525