Mk IV helmet
The Mark IV helmet was a modified design of the Mk III helmet with the chinstrap rivet moved down the bottom of the helmet shell as well as the introduction of fastener for the inner liner.
- "Steel Helmet, MkIV (with scrim): British | Imperial War Museums". Iwm.org.uk. Retrieved 2019-03-21.
|Wikimedia Commons has media related to Mark IV combat helmet.|
- Mk IV helmet at world-war-helmets.com