WW2 Home Front Mk.II Helmet - AFS

A British Mk.II helmet painted red with Auxiliary Fire Service (AFS) on the front. Each side has three white dots painted which I presume denotes some form of seniority, however I am unfamiliar with the latter so worth some further investigation.
I am unable to identify any date on the shell, however the Mk.1 liner is marked BH&G 7 1939 and has been fitted with a Mk.III chin strap. This helmet has obviously seen service as the oval Mk.I pad appears to have been melted and the shell itself is rusty. Some would class this as a semi- relic, whatever you call it, its seen action and so a great item for display purposes.

Code: 51578