New York, N.Y., 1845, 5¢ black on bluish, AC & ACM connected. Horizontal se-tenant pair, positions 24 & 25, even margins all around, blue pen cancels, deep color, left stamp with a small closed tear at top left, otherwise Extremely Fine, a very rare pair showing the different signature types; with 2007 P.F. certificate. Scott No. 9X1, 9X1a  $4,000. $0 (Image)