cover 5c Blackish Brown (1a), horizontal pair, beautiful deep rich color, ample to large margins on three sides, clear to barely in at L., the L. stamp light corner crease and surface thins, tied by red grid on 1848 folded letter to Philadelphia, Feb. 23 U.S. Express Mail Mass. c.d.s., insignificant file fold, few bleach spots, otherwise a fine-very fine cover, rare usage with this shadephoto est.