(Shades) 3¢ Experimental Orange Brown, Type II, Right Margin Single With Part Imprint and "No. 1" Plate Number, position 50R1L, tied by blue "Philadelphia, Pa., Dec 31" cds on 1851 folded letter to Providence, R.I.; stamp with tear along top left edge, F.-V.F., this being the Earliest Known Usage of The First United States Plate Number. Scott No. 11A  Estimate $300 - 400. This plate number was added to the imprint on Plate 1 when it was re-entered in October 1851 creating Plate 1 Late. $0 (Image)

(Shades) 3¢ Experimental Orange Brown, Type II, Right Margin Vertical Pair, positions 20-30L1L, ample margins to just touching at bottom, on cover to Astoria, Oregon Territory, tied by blue "Philadelphia, Pa., Nov 4" cds, docketing with incorrect date, Very Fine, a scarce west coast usage of the 3¢ experimental orange brown shade. Scott No. 11A  Estimate $300 - 400. $0 (Image)