TRW manual, 8.5x11", old Xerox copy of a Tech Manual for this very unusual .50 caliber flechette rifle developed under an ARPA Contract (DAAH01-71-C-0096). Manual has sections on Introduction and Description, Preparation for Use, Operating Instructions, Maintenance Instructions and Illustrated Parts Breakdown. Printed one-sided, 34 pages and 18 illustrations. Not the original but next best thing. Good condition, printing a little light.