Thanks Steve;
No doubt in my mind that table runs in a Dobbins plinth....:-)
The day after I started this thread I found # 618 on Ebay. The eddy current brake disc is almost flat with only one visible indent on the outside rim. It looks like it's made of pot metal instead of aluminum. Same for the magnet assembly. The Ebay ad is still on if you would like to see. Mine has the more common brake disc, and I wonder when Garrard made that change. Do you think we have 1953 models - or as early production ramped up, could they be 1954's? Nice to talk to you again. Take care.
Bob