Ferdinand Joubert
Jean Ferdinand Joubert de la Ferté was a French engraver, photographer and inventor who developed new photographic techniques and engraved dies for numerous notable postage stamps while working for De La Rue in London. His engravings were used to produce stamps of the United Kingdom, the Confederate States of America, Belgium, Italy and several British colonies including British Columbia and Vancouver Island, Ceylon, Hong Kong, India, Jamaica, Malta, Mauritius and New South Wales.