These were 30mm discs and we have taken 4mm for the edge. This is one solid piece of Nickel Silver, it is not soldered. These are formed by pressure and a 100 Ton press. These are wonderful for doing Cloisonne. We have annealed these with our torch and water quenched them to clean them, we also put these in acid to clean off any oxides that formed. I have even sanded the edge for you so it is nice and straight. I feel these are a novel product, unknown to the trade, I have never seen copper Bezel Cups anywhere. These would be great for enameling or other applications.
Type of Metal - Nickel Silver, German Silver, New Silver, Grade of Metal - First Grade, Gauge of Metal - 24 Gauge, Measurement - 30mm Round OD, 28mm ID, 4mm tall., Quantity - 2,