India. (Aden). 1916. Envelope addressed to the United States bearing India SG 170, 2a6p ultramarine tied by Aden Camp date stamp with hand-struck 'Passed by Censor, Aden' in violet on face routed via Aden with 'Opened by Censor' label tied by Aden transit '20th Aug 16'. Scarce Aden censor only in use 8 months, this the latest recorded.