Antique Sections of a Sphere Wooden Blocks Set in Finger Jointed Slide Top Box wounded animal (I believe there was likely

(I believe there was likely once a separate winding device that attached to wind it up and properly get it spinning

(Set includes all pieces included in first photo

with light postmark waves along the left side center

I might hold this perfectly shapes and super smooth thing in one hand while doing so

Antique Sections of a Sphere Wooden Blocks Set in Finger Jointed Slide Top Box wounded animal (I believe there was likelyI recently found a couple of c. 1900 Milton Bradley Kindergarten Blocks sets designed by Friedrich Froebel, which the box and the blocks on this set remind me very much of. I have not been able to find another set like this one out there, which I assume were made to teach the concept of fractions, with five slots in the box corresponding to five sets of blocks, dividing a sphere into 2 then 3, 4, 5 and 6 sections. I can't say for sure that these were