Registered cover fr. with 1 1/4pa/3d+30pa/1 1/2d British Levant stamps canc. "BRITISH POST OFFICE CONSTANTINOPLE D*13.JU.11", mailed railroad, arr. "PHILIPPOPLE*1.IV.91", via "CONSTANTINOPEL DEUTSCHE POST*15.6.11", arr. "BRITISH POST OFFICE CONSTANTINOPLE D*15.JU.11". Indication "Parti" and handwritten "Retour".