1857 (Jul. 10) Madison, Ind. to Port Stewart, Ireland, cover with "Madison Ind. Jul 10" cds, black "N. York Br. Pkt. '5' Jul 14" debit exchange cds, carried by Cunard Line Niagara from Boston Jul. 15 to Liverpool arriving Jul. 26, Dublin "American Mail, JY27 1857" rimless cds with attached "1/" shilling due rating, Coleraine (7.27) arrival backstamp, Very Fine, an uncommon example of the Dublin "American Mail" marking with attached rate. Estimate  $300 - 400. In January 1856, London authorized Dublin to mark rates on Irish mail when there was insufficient time to do so in Liverpool. $0 (Image)