1875-83 Banknote Issues, Essays on Experimental Papers. Five single stamps on experimental paper, including 178(2) on horizontally laid paper, #179 pink laid paper, #209 black brown on experimental paper, and #210 honeycomb watermarked paper, o.g., Fine to Very Fine; #179 with 1988 P.F. certificate. Estimate  $200 - 250. $0 (Image)