Niels, A Tinker Toy is a series of wood forms with evenly spaced
holes and round dowels to fit into those holes. The wood forms are
wheel like, more like a tire with holes around the circumference as
well as in the center through and through.
This is an imagination building toy with which many things can be
built. Airplanes, structures, fences, even stick figures. I am
certain there was something similar in your area as I used to buy
wooden toys from Denmark for my son and later grandsons.
What was done by an enterprising person or two was to create a Jam
Peg unit to facet stones. The wheel like portion was fitted with dop
sticks and then the evenly spaced holes were used to move the dop
into to create facets or sides. I suspect a web search would give
you photos, sorry I cannot draw what I am trying to describe.
This was the wooden answer to the metal Erector Sets, now care to
hear about Erector Sets?
HTH, smilingly, Teresa