incase you didn't know 980 =98% silver contentThat is a Gerardo Lopez Signature. He's a very well known master Silvermith and had a shop in the late 40's -50's. Some of his pieces have evn been on the Antiques Roadshow. It's a nice vintage piece of silver enamelware. His enameled pieces are scarce and sought after, it will demand a premium price. The 980 is a very high purity mark versus the standard 925 or even 950. Sweet find.
Check this out- Extraordinarily Rare + Rarified! Mexican Maestro GERARDO LOPEZ from vintageadvantage on Ruby Lane