Vintage Bronze St Andrew's Ambulance Association Bronze Medallion

There is a comprehensive history for the association online but basically the St Andrew's ambulance association was the first Scottish volunteer ambulance service founded in 1882, members must have been issued with this type of medallion which were individually numbered, this one being 693, as it comes in its packet of issue I can attribute it to a Mary A. Watson. The medallion comes in very good condition and the packet is worn.