stamps were issued with overprints specific to the office that issued them. For instance, the Canton office issued stamps overprinted “CANTON” rather than “CHINE.” Seven such Indochinese post offices had these overprints (here written as they appeared on the stamps) along with their opening dates: 1900 Hoi Hao Kouang Tchéou Wan Yunnan Fou 1901 Canton 1902 Pakhoi 1903 Mongtseu Tchongking One additional way that the Indochinese offices differed from the other French Post Offices in China was that their issues were all overprints applied to the then-current stamps of French Indochina, rather than to the stamps of France. The Paris-run offices would not accept mail franked with unoverprinted stamps of French Indochina, but the Indochinese run-offices are known to have done so. For this reason, French Indochina stamps are sometimes found legitimately used with cancels from one of their Chinese offices. Stamps from the Indochinese offices in China can likewise be found with cancels from Indochina proper, although these were likely applied at Hanoi or other locations through which mail had to pass, (i.e. these are essentially paquebot cancels.) - From 1923, remainder stocks of the Indochinese office issues were used up in Indochina and Kouang Tchéou Wan, see below. The Indochinese Offices in France also sometimes opened sub-post offices within the area they served. For instance, the Canton office would eventually open six branches within the area it served. The specific branch a Canton stamp was used at can sometimes be seen in the postmark. Earlier Canton postmarks read “Canton / Chine” whereas later cancels include a letter from A to F to show at which branch of the Canton office they were used. Closure All foreign-run post offices in China permanently closed on 31 December 1922 if they had not been closed earlier. - The remainder stocks of the Indochinese office issues were called back by the French Indochina postal authorities and used up in Indochina and Kouang Tchéou Wan. They are seen on commercially used covers, also used in mixed frank with regular issues, until the mid 1930s. Particular the stocks of high denomination stamps took a long time to be exhausted. Kwangchowan One notable exception to this were the post offices in Kouang Tchéou Wan (usually written in English as “Kwangchowan”) which was a territory leased by treaty to France for a 99-year period starting in 1898. This was an arrangement essentially similar to that covering