United States United States "Back of the Book" Stamps and Postal Test Stamps (TD)
Sale No: 3022
Lot No:1895
Symbol:img s
Cat No:TD51
TD51, 1912, Brown, Non Denominational Test Pair, testing a photo-etching process by Bruckmann A.G. of Munich, Germany, without gum as issued, Very Fine, scarce. (Scott $200). (Image)