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.
Beginning on 1 September 1867, nine types in the existing stocks of Indian stamps were overprinted with a crown and a new value in cents. Stamps printed by De La Rue for the Settlements started arriving in December.
Shortages from 1879 through 1882 forced the production of various surcharges, until new 5c and 10c stamps arrived in January 1882. This was not the end of difficulties, and additional surcharges appear regularly until the end of the century.