Antique Silver Tap Bell

  I see no markings on the bell as to who it would be made by.  My mother had it for many years & was given to her from her mother.

  I would like to know what it is worth & what the correct name for it is.  I currently am not wanting to sell it. 

  My Mother has written on a piece of tape on the bottom of the base - Grandmother's 1889.

Good