"These instructions are published for the use of the personnel to whom Syncro Devices, Inc., Model SD-1004, Light, Target Surveying is issued. It contains information on the operation and organizational maintenance of the equipment. This manual also provides a description of main units and their functions in relationship to other components."--Page 1.

Range of publication date based on dates of company's existence. "This publication is not an official DA publication and is not available through AG publication channels" -- Title page. "U.S. Army Corps of Engineers, stock no. 7610-C-1-1830" -- Title page. "Model no. SD-1004" -- Title page. "FSN 6675-612-1187" -- Title page. "PO. 88-B/E-48018-11 & 88-B/E-48038-11" -- Title page. "Contract DA-11-184-ENG-18926 & DA-11-184-ENG-18978" -- Title page.

Introduction --Installation and operating instructions.