 Postage stamps of India were used from 1854, the Settlements being considered part of the "Bengal circle", then from 1861 they became part of the "Burma circle".The cancellations used were B/109 at Malacca, B/147 at Penang, and B/172 at Singapore.When the Settlements became a crown colony in 1867, they began issuing their own stamps, not least because they adopted a currency based on 96 cents to a silver dollar.