1855 (May 23) Boston, Mass. to Canton, China, blue folded cover from the Augustine Heard correspondence with "Boston Br. Pkt. 23 May" backstamp and red "Paid" handstamp with pencil "43" prepaid rating, matching red "38" credit h.s. to England, endorsed "Via Marseilles", carried by Cunard Line Asia from Boston May 23 to Liverpool arriving Jun. 2, red London (6.4) transit datestamp and Hong Kong (6.26) transit backstamp, Very Fine. Estimate  $300 - 400. $0 (Image)