Collectors grade.
Very rare form and maker.
Fine quality antique russian samovar. 
Circa 19th century, imperial period.
Marked on the base with brothers ermilov in tula maker's mark (?????? ???????? ? ????).
 size:
About 15 3/16 in. (38.6 cm) high including finial. 
 weight:
Very heavy - about 11.4 lb. (over 5 kilograms).
  condition:
Original antique uncleaned condition with charming indication of age. 
Some expected minor dents. 
Missing ash door from under the base. 
Missing steam valve for the lid. 
Old repair from insde - unnoticeable from outside (last picture). 
Old repair to "key" ("key" is fully functional).
All other parts are 100% original.
Samovar holds water - no leaks. 
Absolutely beautiful samovar!
Fine quality rare example.