Innovation of the Era!
Early to Mid 1900s

Real Metal Heads

In the early 1900's, a process was invented for making inexpensive fire helmets out of aluminum. Because aluminum is light weight and durable it may seem like a good choice for fire helmets but, it is also a good thermal and electrical conductor. This makes it a very bad choice for those working around high temperatures and electricity, like firefighters.
An aluminum helmet, as worn during the early 1900's.