Three 18th century silver charkas from left:

1.  Russian silver charka with chased design, rim feet and handle. 
Moscow, ca. 1794.  Maker's mark: C.O.  Size: 1 1/2" height.  Price: $2,400.

2.  Russian silver charka with chased scrollwork and rim feet.
Moscow, ca. 1794.  Size: 1 3/4" height.  Price: $2,400.

3.  Russian silver charka with chased design, rim feet and handle.
Moscow, ca. 1750.  Maker's mark: C.O.  Size: 1 1/4" height.  Price: $2,200.