Thank you for the additional images and your patience.
The presented object appears to be a patinated bronze with a measurement of 22 inches in height. This bronze was made after one of the first famous bronze with the title "Bronco Buster" made by the American sculptor Frederic Sackrider REMINGTON (1861-1909). It depicts a rugged cowboy fighting to stay aboard a rearing bronco (https://en.wikipedia.org/wiki/The_Bronco_Buster). This bronze is a later recast because of the quality of the cast and surface, the size and the signature, and missing edition numbers.
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 350 to 700 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.
With kind regards,