rare  early 1900's vintage  boxing ring or firehouse alarm   6 inch brass  bell  overall size is 14 inches long ,  can be used mechanically or electrically , has 2  different  strikers ,  heavy cast  base , looks like  mechanical part  could be removed from electrical part ,  has made in  new york  and  patent dates  on base  see pictures ,metal tag on  bell  12 -18 V- 60CY -AC  very well made  item ,