L.H. Rogers Patented "Postal Note" Lettersheet. Completely intact lettersheet perforations, with allover corner card lettersheet design and account statement on reverse, franked with 1873 3¢ green tied by "Helena, Mont., May 31" Montana territorial postmark and cork duplex, address to Fort Shaw, M.T., lettersheet with light vertical fold, Extremely Fine, a magnificent and territorial usage of a patent lettersheet. Scott No. 158  Estimate $500 - 750. $0 (Image)