Carbonating tanks, where lime and impurities are precipitated, by the Keystone View Company, 1908, from the Digital Commonwealth - 1 commonwealth 5425mj40q. (<a rel="nofollow" class="external free" href="https://www.digitalcommonwealth.org/search/commonwealth:5425mj40q">https://www.digitalcommonwealth.org/search/commonwealth:5425mj40q</a>)
Keystone View Company
Digital Commonwealth