1938 State borders correspodence, postage 10 lepta. Cover from "ΣΙΔΗΡΟΚΑΣΤΡΟ*13.6.1938", via "ΘΕΣΣΑΛΟΝΙΚΗ-ΠΕΙΡΑΙΕΥΣ ΚΙΝ 1Β*14.ΙΟΥΝ.38", arr. "ΗΡΑΚΛΕΙΟΝ*16.VI.38". Cachet "ΒΔΙΕΥΘΥΝΤΗΣ ΕΡΓΩΝ ΦΡΟΥΡΙΟΥ". Cover with faults.