Antique sterling silver CD Peacock Cup

Antique sterling silver CD Peacock cup. I bought it about 10 years ago at a garage sale and I don't know much beyond that. I believe it's solid silver as it is marked sterling on the bottom and can be seen in the photos. Please feel free to reach out with any questions and I'll try to answer them to the best of my ability. The cup in the picture is the cup you will receive. Smoke-free and pet friendly home.