Photographic Materials, Mail Order Catalog No. 131, George Murphy, Inc. (New York, NY), dated April 1931, ~6"x9", 212pp
Despite its 212 pages, most of this catalog is expendables, and the camera section is rather small, but packed with view and other professional cameras.
pages 2-21 not scanned
pages 40-97 not scanned
pages 114-209 not scanned