Мимоходом. Ссылочное

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Front cover of the so-called Bowring Treaty, concluded between Siam (Thailand) and the United Kingdom in 1855, with the royal seal of King Mongkut, Rama IV. (The National Archives, Kew, Richmond. Photo courtesy of Pipad Krajaejun)

Интересный проект: Historical Treaties of Southeast Asia, который курирует Стефан Амирель, профессор из Университета Linnaeus, Швеция