TIFFANY Notes Sterling Silver necklace jewelry pendant disc round circle

Tiffany and Co sterling silver notes necklace Authentic! Last picture shows it’s been authenticated by a third party on another website The necklace chain is also Tiffany Chain measures approximately 16.5” 8.5 grams The pendant has a 1” diameter and has a wave to it—it’s not completely flat by design There is some normal wear visible on the silver—seen on back-pictured. The front is shiny and I don’t see wear.