The Serbian Army in North Africa (1916-1918). Registered cover fr. with 2x25c. French stamps and posted from "ALGER*12 2 18" with censorship canc. "CENSURE MILITAIRE SERBE/A" in blue and French "OUVERT par lAUTORITE MILITAIRE*751" in violet and tape with mark "OUVERT par lAUTORITE MILITAIRE*309", via "TUNIS*19 2 18", arr. "WEESEN*16.III.18". Barely visible under the semi-transparent French tape, there is a Serbian tape inscribed "OUVERT PAR LA CENSURE MILITAIRE SERBE". This is clearly different from the tapes used on the Salonica Front and has not been reported in the literature.