Silent Studio Directory - 23 - Art-O-Graf Film Co. - US - 1919-1923 - production company formed by Otis B. Thayer; studio located in Englewood, Colorado; offices at Guardian Trust Bldg. Denver, Colorado; distribution through Arrow Film Corp. Artclass Pictures Corp. - US - 1919- 1926 - production company headed by Lewis Weiss with George M. Merrick as production manager; produced Snub Pollard comedies after Pollard left Hal Roach; offices were at the Longacre Bldg at 42nd and Broadway, New York; studio was located in Yonkers. Artco Productions, Inc. - US - 1919- 1920 - production company formed in 1919 by Harry R. Raver; used the trademark name of Four Star Productions; Raver left the company in August 1919 and Artco continued by leasing Kalem Studios. Artcolor Pictures Co., Inc. - US - 1920-1921 - production company located at 126 W. 46th St. New York with Louis J. Dittmar as president. Artcraft Pictures Corp. - US - 1916- 1921 - distribution company formed as a subsidiary of Paramount; located at 720 Seventh Avenue, New York with Walter E. Greene as president; distributed films produced by Mary Pickford Film Corp; in 1921, Paramount was part of a Federal monopoly investigation which caused Artcraft to be closed.