1875-1902 Postal Card Proofs. A group of 8 proofs, two of UX5 in blue and black on bluish, two UX7 green on grey (faulty) and buff, UX8 light grey on gloomy violet, UX9 on dark salmon, UX11 in black and UX18 with printed "Proof McKinley Postal Card.", all Very Fine except as noted, a nice group. Scott No. UX5//18  Estimate $300 - 400. $0 (Image)