This is an interpretation in miniature of a figurine cast in bronze by Frederic Remington, cira 1895.  His first endeavor in sculpting, it also is the first Western bronze casting of a rider on a bucking horse.  Today this subject has come to symbolize the West. 

The studio interpretation, at 1 5/8 inches in height, shows all the energy of Remington's landmark casting.

Source:  Page 155, The Goebel Miniatures of Robert Olszewski:  An Authoritative Reference & Price Guide by Dick Hunt, published 1989