The Armstrong & Clark token is indeed from Neosho, MO. The firm, a drug store, is listed under this name in the 1889 Dun directory and the 1891 Missouri state gazetteer. I didn't find either name listed in 1881 gazetteer, and didn't find them listed in 1893 or 1898 Dun directories. So, this token must be from the late 1880's or first few years of the 1890's. Though unmarked on the back, the token was manufactured in St. Louis, where 30 different companies "made" such tokens. That is, 30 different "makers" names scan be found on the back, but most had the tokens made by someone else. At the time this token was used, I don't think soda came in bottles, it was sold "on tap" at drug stores.