Fairy Cherub shipping Solid Cast Sterling Silver Brooch Pin

This older Solid Cast Sterling Silver Brooch shipping depicts 5 Figures (Cherubs and Fairies or Forest Nymphs ) within a floral setting.
Size is approximately 1 1/2 x 1 1/8 inches.
Closure is with a roll-over locking pin clasp and hinge.

Condition very good. There is some areas of darker patina on the reverse. Moderate front patina. Great 3 dimensional depth to the figures and their facial expressions are discernible.
There is a hallmark on the reverse which we cannot attribute.
Tested in past to be sterling.