PS posted from "BITOLJ*3 4 17", via "VOJNA POSTA*Br.999*9.4.17" with Serbian censorship "PREGLEDALA/VOJNA CENZURA (32)" in black (No.32V/A, period of use end March - early April 1917) to Corfou. The "3.4.17" date is the EARLIEST KONOWN.