Yes, production was 1951 onwards, but the majority of the helmets in the Korean War were from WWII.My gut feeling is that your grandfather did occupation along the DMZ in the 60s.
This is my grandfathers M1 helmet that he used in the Korean war, but I noticed a firestone marking on the helmet liner, and thought it could be a WWII made helmet that was refurbished. Who told you that it was your grandfathers helmet from Korea? the shell appears to be Korean war era, because the those type of chin straps with green painted metal hardware were in use from 1951 - 1960 the liner is an old WWII era, it has tan HBT pattern webbing, Korean war liners have green webbing the cover is Vietnam war era the steel shell looks like it may have been refurbished in the mid 1950's by the color Edited by BOLO, 13 August 2008 - AM.Rob Justin: I apologize, but you saw what happened there right? Well anyway the cover does not have a date, but I am starting to think that he did go to Korea, but after the war like some people have said. For over forty years, the M1 was standard issue for the U. The M1 helmet is extremely popular with militaria collectors, and helmets from the World War II period are generally more valuable than later models.
His helmet has a camouflage cover with additional natural camouflage added on the slots in the helmet's cover. The M1 helmet is a combat helmet that was used by the United States military from World War II until 1985, when it was succeeded by the PASGT helmet. The M1 helmet has become an icon of the American military, with its design inspiring other militaries around the world.For example, liners are currently worn in training by United States Navy SEALs BUD/S candidates, where in it is painted with the trainees' class number, name, and rank insignia, and painted and chrome-plated versions models are still used in ceremonial units.In Israeli service, reserve soldiers have used the M1 helmet in combat as late as 2006. image=helmetandlinervp2Edited by OD MAN, 12 August 2008 - PM.The liner quite possibly could have been used in Korea, even thought it is a late WW2 manufactured liner.The M1 is two "one-size-fits-all" helmets—an outer metal shell, sometimes called the "steel pot", and a hard hat–type liner that is nestled inside the shell and contains the suspension system that would be adjusted to fit the wearer's head.