Ok. . .will admit. . .this came from E-4idiots.. . . in my years as a closeted CrebHead. . .and Brookfield collector. . .have honestly never. . .come across one of these. . .ever. . .Have always liked this CD. . .have an no name specimen that has a clump of fire brick sticking out of the base. . any ideas what application these were used for? Big wire groove. . .trolley lines? Any thoughts on the manufacturers of the unembossed units?

Happy Halloween to ALL!

Haunted Dog ^..^