New York, N.Y., U.S. City Despatch Post, 1849-50, 1¢ black on buff, four margins, tied by "New-York, 20, Jun 18" integral cds, used with 1851, 3¢ dull red, three singles (11), mostly four margins, tied by circled "20" ratemarkers on cover to Montreal, Canada, manuscript "1/-" rating, minor cover creasing slightly affects carrier stamp, some soiling, F.-V.F., ex Waterhouse. Scott No. 6LB11  Estimate $500 - 750. THE ONLY RECORDED NEW YORK 1¢ BLACK ON BUFF SEMI-OFFICIAL CARRIER ISSUE TO CANADA. $0 (Image)