Forgot to write this a few days ago (ADHD moment) but here we are. Last Friday Me, HX56 and Lightningfun64 took the time to look through the reserves we made of the British General Electric general catalogues from both 1942 & 1958 in the State Library of NSW. We definitely scored big on this one since we have found never seen before pages which opened up quite a bit of information. We managed to gather a bit of new information seeing that BGE produced two different line-ups. Both being the "L0000" and the "V0000" series which all the specifications and information are all found on the general catalogue pages. We also found a page confirming the BGE 12/14 sirens have a name, to our (not so) surprise the "Air Raid Siren" which this one page also quotes "Special 3 phase 5 mile range". Anyways to cut my time from writing everything provided, our scans are provided below for everyone to take a look at. I will also supply HX56's article for those who are interested in a little bit more reading. We plan on covering FFE/Quell catalogues and such the next time we return in hopes to find information on the Quell sirens that are scattered across South Australia.
https://siracom.net/bge-siren-products-index.html