Air mail cover posted from "THESSALONIKI*18 X 39", via "ΑΘΗΝΑΙ" to London with exchange control cachet "ΥΠΗΡΕΣΙΑ ΠΡΟΣΤΑΣΙΑΣ ΕΘΝΙΚΟΥ ΝΟΜΙΣΜΑΤΟΣ*ΘΕΣΣΑΛΟΝΙΚΗ", linear "ΘΕΣΣΑ Η ΛΟΝΙΚΗ" and manuscript "Yidish language".