Knight on Horse

We bought this at a Willis Day warehouse auction a few years back, it was in the last room which they sold, we are a collector of horse item as we have horse of our own, I told my husband I would like to have it but I thought it would bring too much.  It had been a long day and the crowd got kinda slim and I got lucky I guess... We have it in our family room and every one that come thinks it is so neet but no one has ever seen anything like it eaither...I would never sell it but would like to know what it is worth....