This is a large serving plate .probably for waiter bringing you a drink,measures 9 inches wide,monogrammed with an initial 'E'  in the center,could be used as a wine coaster.

may be a bottle of aspirin and a glass of water ,lots of people could use some aspirin these days !

Total weight is 9.65 troy ounces, good condition,please see pictures.

The first picture has yellow tint from the light,the rest does not.