Blow, W.T., 1¢ Green, Experimental Silk Paper, remarkably well centered for this typically off-centered issue, rich bright color, central thin, otherwise Extremely Fine, a gorgeous example of the W.T. Blow 1¢ Green on Experimental Silk Paper, A Great Private Die Medicine Rarity With Only 7 Examples Recorded in the Aldrich census (of which 3 are reported to be faulty and 5 with less than fine centering), grossly undervalued in Scott. Scott No. RS31e  $1,900. $0 (Image)