Postage stamps and postal history of New Zealand
Postal services in New Zealand have existed since at least 1831, when the Postmaster-General of New South Wales deputed a Bay of Islands merchant to receive and return mail. Governor William Hobson issued an ordinance covering postal matters, although the British government retained control until 1848.
Source: Wikipedia — Postage stamps and postal history of New Zealand (CC BY-SA 4.0)