These are not the same coin types as referenced above, apart from being provincial Chinese coinage. Several provinces issued them and yours are Yun-Nan Province as stated on the coins. They don’t carry a date but were struck from 1908 until probably 1911 and carry a denomination based on a traditional system of weights. A ‘candareen’ is one tenth of a ‘mace’ (approximately 378 milligrams) and the combination of weight together with the fineness of silver used aligns the coins to the dollar. For example, the 7 mace and 2 candereens coins contained the same amount of bullion as the silver dollar and the 3 mace and 6 candareens coins (like yours) contained the same amount as a half-dollar. The actual fineness varies from .800 to full silver according to the issue.
However, fakes abound… and if any of these coins are attracted to a magnet then they’re fake I’m afraid.