Cast Assemblage Sculpture pre 1960’s - Acrylic, Bone, Steel, Burnt Salt, Leather, Wire

Cast acrylic assemblage sculpture - roughly 8” x 6” x 2”

Made of : Cast acrylic, leather, vertebrae, leather, steel, wire, salt in varying stages of being burnt, plastic

I’ve owned this sculpture for many many years and always wondered about it. I vaguely remember seeing this somewhere and thinking to myself, “burnt salt - that’s not “art!?””

Here I am decades later, still wondering what it is!?! Any information at all would be greatly appreciated!!!