1848, small envelope from "CONSTANTINOPLE 25 JUIL 48" to London in "care of Baring Bros, London" with manuscript "1/3" due rating, later crossed out and "1/-" prepaid transatlantic packet rating applied, carried by Cunard's "Britannia" from Liverpool to Boston with partial "BOSTON SHIP AUG 26" and matching "34" cent retaliatory handstamp, some paper loss at center, otherwise fine
