Hello, I have a Waechtersbach plate that looks like a cake plate. It looks like it is one piece and is a round plate (about 12″) on a short pedestal. The plate is lined in black. On the back is what I believe to be the Waechtersbach ‘hive’ mark along with the design number Dec 2783 (could be 2788 or 2733); Germany; and 1VV970 (unclear) by the ‘hive’. Can anyone tell me whether this is actually Waechtersbach and, if so, the age of the item? Thanks very much! (I tried to post photos but I get an error message.)