1848 (May 19) Liverpool, England to New Orleans, La., blue folded letter with red "Paid at Liverpool, MY 1848" framed handstamp and magenta "1/-" prepaid rating for 1s packet rate, carried as endorsed by Cunard Line Niagara from Liverpool May 20th to Boston arriving Jun. 2nd., red "Boston Ms. 'Ship; Jun 2" cds and matching "12" due rating for 10¢ inland plus 2¢ ship fee, Very Fine, This was the Maiden Voyage of Cunard Line Niagara. Estimate  $200 - 300. $0 (Image)