Person answered my ad today. Took a drive to an old coal mining town along the Youghiogeny River. Came home with 4 pieces, the best being this U-90 mine spool, even with the damage.
I thought there was an insert on the one end. It's a fence post spool stuck inside it. I shined a light in to look at the "insert" and it says Farm Master on it and was obviously porcelain. I managed to push it out.