PANAMA - GREAT BRITAIN: 1876, Small sailor's letter (envelope) from a member of HMS Albatros at Panama, the ocal countersigned by commanding officier, franked with GB 2 d. blue, cancelled in transit with "C51" of St. Thomas, addressed to Pocklington with transit and arrival marks, most part of upper backflap missing and the stamp negligible small corner fault. A stunning letter, certificate Paaskesen (1995)