large margins, on locally-addressed 1848 folded letter, red "Boyd's City Express Post Dec 15 2" oval handstamp at right, certificate mentions "small area of ink smearing at bottom and a small surface scuff in the "O" of "Boyd's"" which we feel do not detract from the lovely appearance of this cover, very fine, fewer than six covers are known with the Fourth Issue gold "social" stamp (most of which have the stamp cut to shape), this cover certainly ranking amongst the finest, 2006 Philatelic Foundation certificate (Scott $1,750)