This is a lovely Victorian sterling silver repousse bracelet with a puffy heart padlock and key charm. The bracelet measures 8" in wearable length with the padlock attached by 1/4" wide and tested as sterling silver. This set is in nice condition with minor surface scratches on the back of the padlock that comes with age. There is a key that looks like this one shown in the book Charms and Charm Bracelets by Joanne Schwartz on page 44.
Thank you for looking!