Cameras, Photographic Apparatus and Supplies, General Catalog No. 15, Burke & James Inc. (Chicago, IL), undated c.1915, ~6"x9", 160pp
From the lack of studio cameras in this general catalog, it is probable that there was a corresponding catalog of professional equipment. It is undated, but is probaby 1915-1917.
Pages 91-101 contain professional movie gear.