1847, 5¢ dark brown, two singles. Clear to large margins, neat red grid cancels and matching handstamped "10" on 1848 folded letter from Boston to Philadelphia postmarked red Boston U.S. Express Mail cds, F.-V.F.; with 2010 P.F. certificate. Scott No. 1a  Estimate $750 - 1,000. $0 (Image)