Here are the pictures of the item I have. The reason I was suspect about it being a pendulum because it had a design on both sides, but maybe that is common, although I would think made it more expensive and for what purpose? It is 1 1/2 " wide, just shy of 1/2" thick and weighs a quarter pound. There was a silvered patina that has worn off most of it, mainly on the relief portions.
Thanks!