10π. PS (G.Aspiotis) posted from "VOJNA POSTA*Br.414*27.6.16" in violet, via "VOJNA POSTA*Br.999*28.6.16" in blue with Serbian censorship "(21) PREGLEDALA/VOJNA CENZURA" in violet (No.21IV/A, period of use enf June 1916 - December 1916) to Lausanne. This type of card, actually, was issued as Fieldpost card and it is not clear that the stamp had any postal validity.