This is an period WWI/WWII German helmet liner with an attached chinstrap, perfect for any collector of militaria. The liner is in size 64. It is an original item and has not been modified, making it a great addition to any collection. The country/region of manufacture is unknown, adding to the mystery and intrigue of this piece. This helmet liner is a must-have for any serious collector of German WWII memorabilia. Chinstrap is delicate but complete.