The piece on the right has been taken to shows and people (many old timers included) scratch their heads as to the CD.
It is compared to two different W. Brookfield 162.3s from different molds.
A much wider wire groove, and a much smaller skirt. If the SDP "plate" had not bee included on the mold, imagine how much smaller this skirt would be.
I think I heave heard of 4 of these - one being green.
Picture 1 of 3