08-11-2019, 06:17 PM
The things you showed in the #1 posting with the two dots in it, from around the period 1470, it seems that they are a connecting ring for the beams or rays or flows or whatever goes through. This means indeed somethings flows through, the ring holds it all together.
If you look at pipes, spindels, coils, spil's, pivots, axis, spools and such from that period you will see that those will resemble.
If you look at pipes, spindels, coils, spil's, pivots, axis, spools and such from that period you will see that those will resemble.