A bit more for the above. My late Bren mags are JII for John Inglis. Australianicon mags can also be stamped "OA" for Orenge Arsenal. If you go to Chatham Militaria fair. See James Aslett of Chelmsford Militaria.com . He will do you a deal on a CA stamped box of 12 Inglis Bren mags. He has the tools as well. Last Sunday he had a Canadianicon Army Brengun barrel bag for sale. Linen as opposed to webbing with leather trimmings.
I supplied James with the Brengun tools photographs.
Kind regards, Lester