Cairns fire helmet dating
Ideally the wooden black should be roughly the same shape that you are trying to achieve.
Then use a rubber mallet to bend the metal accordingly.
It can be quite frustrating because vintage fire helmets are pretty popular with firefighters, many of whom restore leather helmets for actual use.
Here are some pointers for selecting a good helmet to restore: I am not an expert metal-worker so if you're helmet needs major repairs I am not a good resource.
Here is a couple things that you can do though: If the brim needs a little reshaping, place a wooden block under the part of the helmet you want to reshape.
If you didn't remove the tag on the inside during the stripping phase, remove it before painting.
For the brass eagle I wrapped it as tightly and closely as a I could.
In a well ventilated area, spray paint the primer using smooth strokes back and forth, about 6-8 inches away from the material.