I have recently purchased a once in a lifetime collection of antique charms that I will be putting on Rubylane. The last picture shows the entire collection. This charm is 20mm across and the glass centre opens up to add little treasures. Someone has added tiny natural seed pearls and a clear gem to the compartment. The centre is surrounded by red enamel border and the locket is hallmarked with Austro Hungarian hallmarks which are SG for the makers mark, and a lay with a crescent crown for silver content mark. The enamel has one small bit of loss but thing to detract.