Military Post Offices. Degree of Rarity. Letter card posted from "VOJNA POSTA*Br.40*26.7.17" (M.R.Vukovic study page 176, rarity V) with Serbian censorship "PREGLEDALA/VOJNA CENZURA 71", via "VOJNA POSTA*Br.???*7.8.17" and "VOJNA POSTA*Br.999*9.8.17" to Pontanevaux, France.