I had never heard of this art form. Concentric sculpted balls: the inner balls were sculpted through the holes in the outer balls. Up to 12 concentric layers of spheres. Long before the invention of the Dremel.
Mind blown.
My grandparents had one of these. It was beautiful. Unfortunately it got dropped and one or more of the inner balls broke. === It must have been one of my cousins. It wasn’t me.