Birmingham Related Crest Unmarked White Metal Hand Engraved and Voided Design

Not yet positively identified any help most welcome. This is a crest similar to that used by the Birmingham Royal Naval Reserve, but could also be civilian, such as girl guides of the city. four original small fixing loops to the reverse. Die cast, and looks to be unmarked silver as tarnished. Circa 3.9cms tall and 3.1cms wide. In very good condition.

Comm GM

Code: 67320