New York, N.Y., U.S. City Despatch Post, 1842, 3¢ black on grayish. 4 enormous margins, orange-red "U.S." in frame cancel marking carrier usage, widely considered to be one of the 2 finest examples of this, the First U.S. Government stamp usage, a Superb gem, ex-Schwartz; with 1977 and 2004 P.F. certificates. Scott No. 6LB1  $2,000. $0 (Image)