1838, folded letter (inside not complete, sender was a missionary of an island...) with desinfected slits and blue circular cachet of Syra Lazaretto on reverse and also the manuscripted endorsement of the Marseilles fowarded agent to the Office of Missions in New York, red postmark "MARSSILLE 4.MAI.1838" and boxed "P.P." on front, fine, rare (Tax Method: Margin System) (Image)