Cover printed "ΕΛΛΗΝΙΚΟΣ ΣΤΡΑΤΟΣ/KATOXH ΚΑΒΑΛΛΑΣ ΤΕΤΑΡΤΗ 26 ΙΟΥΝΙΟΥ1913" fr. with 50l/10ct 1913 "ΕΛΛΗΝΙΚΗ ΔΙΟΙΚΗΣΙΣ" surcharge on Bulgarian stamp (surcharge in blue) canc. "ΕΛΛ.ΤΑΧΥΔΡΟΜΕΙΟΝ ΚΑΒΑΛΛΑΣ*3/16.VII.13", via "ΘΕΣΣΑΛΟΝΙΚΗ*8.ΙΟΥΛ.13", arr. "ALEXANDRIA*1.VIII.13". (Hellas 8A).