1848 Transatlantic Mails Including Retaliatory Period, group of 14 covers comprising 9 retaliatory period letters and two May 1848 pre-retaliatory usages, seven are incoming to Boston, Philadelphia, New York, Lancaster Pa., Petersburg Va. and Derby Ct., two outgoing to London; also includes 1840 Great Western cover front and 1841 New York to London Harnden's use; some flaws, F.-V.F. Estimate  $600 - 800. $0 (Image)