This is a 1/4 scale model of the US M1 helmet and liner.
The M1 helmet
is a combat helmet
that was used by the United States
military from World War II
For over forty years, the M1 was standard issue for the U.S. military. The M1 helmet has become an icon of the American military, with its design inspiring other militaries around the world.
The liner will fit inside the helmet.
Make some strapping with fine leather (and for the truelt adventurous) all the metal fittings and you will have an accurate scale reproduction in minature.