Lot
4144 S
1879, 2¢ Blue on Buff, Postal Card, "Specimen", two issued cards with printed "SPECIMEN" 20 x 2.5 mm in black over the stamp and matching "SPECIMEN" 35 x 3.75 mm in a rectangle of squares set diagonally with end ornaments 55 x 10 mm, one is noted as "Clean Plate" showing sharp detailed impression and second as "Dirty Plate" with heavier inking, Very Fine exhibit pair. Scott No. UX6. USPCC No. S5PSd $500.