28mm American fiber helmet

28mm scale model for war gaming. (heroic scale)

A simple representation of the American Fiber Helmet with no emblem. Originally procured by enlisted Marines as a cheaper alternative to the European Pith Helmet. It is still in use by US Marine range coaches, as it provides superior ventilation and protection from the sun.

https://en.wikipedia.org/wiki/American_fiber_helmet

The original American Fiber Helmet was likely the inspiration for the NCR Trooper Helmet from Fall Out New Vegas.