Vintage 1980's Mains-Favre Handmade Brushed-Nickel Etched Buffalo Belt Buckle

This was my Dad's, who was a collector of all things Buffalo, purchased in Las Vegas in the 1980's. It's stamped on the back Las Vegas and the artist's signature.
Made of Nickle, it measures 4" X 3" and is in good condition, but could use a good polishing. Mains Favre is famous for these highly collectible brushed-nickel belt buckles, so you can't go wrong with his work.