This is a piece by RS Prussia, its a saucer..not sure of the piece siting on it

this is a piece of RS Prussia, I know the piece on the bottom is a saucer, but have no itea what the top piece is. I is about 3in around, and about 1 in deep..with what looks to be little handles on each side.. I don't think the two pieces go together...maybe the same pattern..but then again I have no idea what the pattern is..hoping someone on here does...