This is a lovely rare extra puffy Victorian sterling silver enameled blue bird delivering a love letter. It measures 5/8" in length with the bail ring by 5/8" wide by 7mm thick and marked STERLING. Only Victorian charms were either very flat to very puffy and this one is a beauty and it is in wonderful condition and no chips in the enamel finish. These extra puffy hearts are very hard to find and I have take a picture in the last photo of it nest to one that is thinner to show you the difference in size.
Thank you for looking!