Cover to Erfurt posted from "ΤΑΧΥΔΡΟΜΕΙΟΝ ΜΥΤΙΛΗΝΗΣ*18.IX.38" with exchange cotrol cachet "ΤΡΑΠΕΖΑ ΤΗΣ ΕΛΛΑΔΟΣ-ΜΥΤΙΛΗΝΗΣ" (type 6, Nr.96a) in violet colour and bilingual tape "CONTROLE DU CHANGE" (Nr.23). Linear censors canc. "Κ.Ι.ΦΑΡΜΑΚΗΣ".