Wonderful antique american coin silver large presentation water pitcher.
Fine quality hand chased decoration.
Circa 1850's, boston, massachusetts.
Marked under base: "bigelow bros. & kennard boston coin". 
Size:
About 14 7/16 in. (36.7 cm) tall at the handle.
  Weight:
 About 30 troy oz.
  Condition:
Very good original antique condition with light handling marks and charming indication of age. 
Some minor, easy to fix dents (don't affect overall appearance or functionality, please see last 2 pictures). 
No repairs.
Guaranteed solid silver - 900/1000 american coin silver standard, slightly lower than sterling.
All dark spots you are seeing in the pictures is just a reflection.