Military Post Offices. Degree of Rarity. PS posted from "VOJNA POSTA*Br.72*8.4.18" in black (M.R.Vukovic study page 177, rarity R) with Serbian censorship "PREGLEDALA/VOJNA CENZURA (41)", via "VOJNA POSTA*Br.999*11.4.18" to Corfou. The Br.72 postmark was replaced by B.208 by 12.4.18.