Vintage Swiss Fire Helmet Firefighter Feuerwehr with leather chin strap & liner

Description

An original and classic Swiss Fire Helmet (Feuerwehr) with ridge comb, leather chin strap, and six-finger leather liner.  This helmet is possibly made of brass, but it's not definite.  There is a tear in the chin strap (see pictures).  The drawstring on the liner could be a replacement.  I personally bought this in Zurich, Switzerland at an antique shop. This helmet has dents, flaws, corrosion, and distressing from wear and age.