Offered here is a vintage ships bell. ( I believe that the manufacturer of this bell is Perko, but there have been copies over the years)  This chrome plated brass 6" bell has a true sound.  I have polished this bell to the best of my ability.  It still has some small deep pits but the shine mostly overpowers them.  You can check the pictures and ascertain for yourself.

The only problem is that the female mounting bracket is missing, however these should be available at your marine store or on line.

Thanks for looking and please ask any questions you may have prior to purchase.