India. (Indian Expeditionary Forces). 1917. Censored envelope written from 'Wriga Mission, near Wilhelmstad' addressed to the 'International Peace Bureau, Berne, Switzerland' bearing I.E.F. SG E6, 2a6p ultramarine tied by 'I.E.F. No 102' date stamp with censor cachet 'signed by the Political Officer/Wilhelmstal, 8 jun 1917' routed via London with 'Controle Postal Militaire' label and oval 'Ouvert/Par l'Autorite Militaire/906' with Bern receiver on reverse.