Keystone Studios

Keystone Studios was an early movie studio founded in Edendale, California on July 4, 1912 as the Keystone Pictures Studio by Mack Sennett (1880-1960) with backing from actor-writer Adam Kessel (1866-1946) and Charles O. Baumann (1874-1931), owners of the New York Motion Picture Company (founded 1909).^[2][3] The company filmed in and around Glendale and Silver Lake, Los Angeles, California for several years, and its films were distributed by the Mutual Film Corporation between 1912 and 1915.^[4]

• http://en.wikipedia.org/wiki/Keystone Studios
• Page 52 - Bahn, P., 2014, The Archaeology of Hollywood: Traces of the Golden Age, Rowman & Littlefield, Lanham, 166p.