1918, Saving stamp of 1k red on buff network, proof sheetlet of ten (5x2) values, overprinted ''Obrazets'' at the top margin, with partial perforation on the left and upper edges, full OG, NH (hinged on margins), VF and extremely rare, this item was sold in our Auction #77 (lot #1547) for $3,500 plus appropriate commission, Est. $3,500-$4,000 (Image)