Vintage firefighter helmet.
https://s3-us-west-1.amazonaws.com/h...ter_helmet.jpg
Previously:
https://www.homemadetools.net/forum/...588#post155343
https://www.homemadetools.net/forum/...328#post142264
https://www.homemadetools.net/forum/...485#post151179
https://www.homemadetools.net/forum/...248#post150132
https://www.homemadetools.net/forum/...062#post125604