Shaun King Antiques has dated this piece to the 1880s.
The name BEACONSFIELD is inscribed to a tablet at the base of his waistcost.

Overall the condition is good. There are two or three surface chips to the socle. There is a circular metal plug to the top of his head (please see photograph) which could suggest the bust was, at one time, a lamp.
Height: 11 inches (28 cm)
Diamter of Base: 6.5 inches (16.5 cm)
Shaun King Antiques has dated this piece to the 1880s.
Third generation antiques dealer selling a wide range of large and small antiques pre 1920.
You can view the stock and full dealer information on the Shaun King Antiques Profile Page