Postage stamps and postal history of Great Britain Royal Mail rubber band London Penny Post List of companies based in London Barbados Postal Service and forerunner – created by Royal Mail in 1663 for postal services in the former Crown colony, and a part of RM until 1851 Hongkong Post – created by Royal Mail in 1841 for postal services in the former Crown colony, and a part of RM until 1860 Canada Post - established as Royal Mail Canada 1867 (replacing colonial postal departments) and renamed late 1960s; RM managed postal services in pre Confederation Canada from 1775 to 1851 Australia Post List of oldest companies Caribbean Postal Union[148] Credit unions in the United Kingdom