This is a genuine US Vietnam War Era M1 Helmet Shell made by Parish with a Rear Seal, with a unique feature of being named. It is a highly sought-after collectible item for militaria enthusiasts, with its original and authentic design, and it was manufactured in the United States. The helmet shell's historical significance lies in its connection to the Vietnam War (1961-75), making it an excellent addition to a collection of original period items from that period. The helmet shell was used by soldiers in the conflict, and its unique features and design make it stand out from other militaria items. This collectible is a must-have for anyone interested in the Vietnam War and militaria.