Exactly what I've been thinking re the transitionals.
I'm trying to line up the colors on the machine mades with red to the transitionals. The blues greens etc are perfect the red seems off though, I have a stash of Asians to sort to find the red.
Canada wasn't effected by trade during the wars . My hunch is since we didn't make glass marbles the flow didn't stop.
I find german handmades and Japanese marbles together a lot.
I mainly scour antique stores etc.