Horse statue made of unknown material

When I purchased this horse at an estate sale, it had alongside it a framed pencil sketch of the same horse, only in larger scale. The drawing appeared to be some sort of schematic or template for the design of the horse because it included lines of measure showing distance between various parts of the horse's anatomy. Unfortunately, I did not have enough money to purchase the pencil sketch. No doubt, there is someone out there who owns the sketch now, but has no clue about the statue. The horse is heavy at about 8-1/2 lbs. When I bought it, I assumed it to be carved of some kind of dark wood, but that turned out to be incorrect. Everyone I have ever shown it to automatically thinks it is made of wood also. The horse has a wild, untamed look. There is a small hairline stress crack in the front, weight-bearing, hoof, which is visible in one of the photos. The outer veneer is shiny and smooth, and is a dark brown-red color, sort of like the color of red mahogony. In the carved-out recesses, the color is darker, almost black. The inner material, as can be seen in the hairline crack on the hoof, is a dull orangish-red material. The nearest thing I can think of is some sort of resin or lacquer. Another curious thing about the horse is that it is free-standing--meaning it has no base for support. It stands on just three of its legs-one front and two rear. With the body being so heavy, this makes it rather precarious to showcase this horse, since it could easily fall over if just lightly bumped or jarred

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