WW1 German / Austrian M16 Shell Only No Damage. No dents or dings in helmet. Austrian helmets typically have no markings on inside indicating manufacture and size and it's true of this helmet.Inside head dimension was measured and compared to known Si66 helmet and determined to be between a 66 and 68. This particular helmet was repurposed for the Afghan Army and the two small holes on the right side are for the army emblem. The item "WW1 German Austrian M16 Helmet No Damage Size 66/68" is in sale since Sunday, January 24, 2021. This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\Germany\Hats & Helmets".s3pyigc" and is located in Knoxville, Maryland. This item can be shipped to United States.