WW2 ARP River Emergency Services (RES) Badge and ID Card

A few days ago I wrote a short blog post about the River Emergency Services that operated on the Thames. Coincidentally the following badge and ID card appeared on eBay. I have yet to come across a clear photo of the circular badge that the RES volunteers wore on their ski caps pre-war and early in the war but I assume it was similar in design to the badge shown.

The Port of London Authority (PLA) coats of arms is also shown below in detail. It is described as:

"Azure (blue), issuing from a castle argent (silver), a demi-man (half man) vested, holding in the dexter (right) hand a drawn sword, and in the sinister (left) a scroll (the one representing the Tower of London, the other the figure of St Paul, the patron saint of London).
Crest: On a wreath of the colours, an ancient ship, the main sail charged with the arms of the City of London.
Supporters: On either side a sea-lion argent (silver), crined (meaning having hair), finned and tufted or, issuing from waves of the sea proper, that to the sinister (left) grasping the banner of King Edward II; that to the dexter (right) the banner of King Edward VII."

The Latin motto is "Floreat Imperii Portvs", meaning "May the Port of the Empire Flourish".

The Port of London Authority (PLA) Coats of Arms