Combat helmet with age and wear, per the photos.  Lid is marked on the rear interior skirt.  Liner shows matching wear, and corrosion throughout indicates original condition.  Decal is approximately 20% remaining.  From the estate of a deceased collector, many of the artifacts suffered recent rust damage due to improper storage in the garage after his demise.  Shame!  Still, an original example, untouched other than by age and weather conditions!