vintage amber mozart silhouette pendant - Germany?

by Teddington
(California)

My uncle served in WWII in Germany and brought back a pendant that i believe to be amber. it has a silhouette of Mozart etched into the back side and says "W.A. Mozart" in full caps below the image. Is it valuable/what can i learn about it? I have not been able to see any like it online. It is approximately the size of a fifty cent piece (oval shape). thank you.