For sale is one new old stock.

US Army Technical Manual,

size is 6 1/2" x 9 1/2", stapled

three hole punched, dated 20 August 1982.

Manual is titled: TM 11-5820-887-10, Operator's Manual Digital Message Device Group OA-8990/P. Covers the following - description, controls and indicators, preventative maintenance, operating procedures, troubleshooting and maintenance procedures. Illustrated using detailed line drawings and flow charts/graphs.