(SEE PAGES 224 - 231 IN PIETER OOSTERMAN'S BOOK "THE M-1 HELMET OF THE WORLD WAR II GI"). THIS IS A PERIOD 1945 LINER WHICH CONTINUED USE POST-WWII. The liner nape is marked 1945, The sweatband is marked 1953. Has letter H ink stamped in leather liner chin strap.Please see my other military items. The item "EARLY WESTINGHOUSE STEEL A WASHER PARATROOPER LINER HELMET WW2 WWII Korean war" is in sale since Tuesday, January 03, 2017. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Hats & Helmets". The seller is "bloodhound1999" and is located in Menominee, Michigan. This item can be shipped worldwide.