Militarized Civilian Sack Coat , patterned from the original coat housed at an undisclosed Museum. 4 piece body, two piece sleeve construction, with one interior slit pocket. topstitching by machine, buttonholes by hand. Optional piping. Militarized Civilian Sack Coat , pattern from the original coat housed at an undisclosed Museum. 4 piece body, two piece sleeve construction, with one interior slit pocket. topstitching by machine, buttonholes by hand. Optional piping