This is an October 1941 wartime brass fount Canadian model 169K kerosene lamp described as 'light green laquer with silver highlights' on page 2 of the Coleman Canada No. 42 sales catalogue.
I like these although I think the colour is 'Orrible. Big brother to 168K and not near as common. This lamp was given a name and is catalogued as 169K Royal. ::Neil::
This link shows relevant information. https://classicpressurelamps.com/threads/1935-ca-coleman-169k-advert.1429/
@AussiePete Can you look at the base plate of the tank on your 169K and tell me if it is stamped, and what it says. Sorry to be a pain! Cheers Tony