A genuine U.S. Army Vietnam War era Issued M1956 1st pattern Field Pack also known as a 'Butt Pack' due to its location when used. In excellent condition and appears unissued, top plastic ID holder is in good shape with Alice clips to the back, DA (Defense Agency) contract number and was made in September 1959. It's made from OD7 duck cotton and features a small carry handle, side webbing plus a row of eyelets to for attaching hook gear like machete sheath or bayonet scabbard.