It's a good bet any bronze sculpture from any famous artist is a recast. Some recasts are very high quality. If your husband paid a lot of money for it from a reputable dealer, maybe an apprasial from an authority might be in order. An original Russell (even back in the '70's) would be worth many thousands of dollars. Some recasts bring respectful sums of money but nothing compared to what the original would bring. If your Big Horn Ram is a recast, which I suspect it is, it could bring $1,500 on a good auction day. That's just my guess.