(Retaliatory Rate) 1848 (Aug. 18) South America To London via New York, folded cover with docketing, forwarded by Howland & Aspinwall from the Rothschild correspondence to London, reverse with red "Forwarded By/Howland & Aspinwall/New York" oval handstamp, New York pencil "24" cent packet rating, carried by Cunard Line Cambria from New York Aug. 30 to Liverpool arriving Sep. 14th, red London (9.15) arrival backstamp and manuscript "1/-" (British due) packet due rating, Very Fine, a rare Latin American retaliatory cover. Estimate  $150 - 200. $0 (Image)