1920 Firefighter Helmet Restoration

This is a very rusted helmet for Firefighter, made in France in 1920. I found this helmet at flea market, cost me 20 euro. As you can see is in a very bad condition, i think is better to restore it than to leave rust eat the metal. I am a not a profesionist to restoration so this is why i buy cheap stuff to restore, like that i gather knowledge. I hope you like it. Napoleon Bonaparte reordered the various fire fighting organisation in Paris (and later other cities) into a unit of the French Army called the