Cover printed on flap "THE SERBIAN RELIEF FUND" fr. with 25c French stamp canc. "TRESOR ET POSTES*501B*13.9.17" and "TRESOR ET POSTES*510*15.9.17" to England. Triangular "NO", 2-line "OUVERT PAR LAUTORITE MILITAIRE" and tape "CONTROLE POSTAL MILITAIRE".