Hi Mark,
Interesting that NWs books contains Canadian ref to KG3, too, and the other numbers for colours are in the same spec sequence (CS/1289 dark grey, for example). 'CS' I think stands for 'Contract Specification", ie the requirements released to contractors for bidding and manufacturing purposes. The spec originated with the War Office, and I suggest Australia used the spec/method, but arrived at their own colour to suit local conditions. This last is speculative, of course.
Gina has recd the BC and ref numbers for the NAA file by PM.
Regards
Mike
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