My main collecting interest is British and Commonwealth militaria. That's what got me into GPAs in the first place so it's understandable I've wanted one of these for a long time. Finally found one. The base plate and windscreens were pretty badly rusted. Luckily in was mostly surface rust, not much pitting but so much of the original finish was gone that I had no choice but to repaint those three pieces. The collar was fairly rusty also, but the burn and light directions for the FA are only painted on this model, not stamped and I didn't want to loose that. The fount on these is like a Gold Bond, the paint is pretty much the only true identifier. If you repaint one of these it's just another 500 with no way to prove it's not a fake. I had wondered about when the stoves were painted, at the factory or after they were received by the Canadian government. The black stamp on the bottom answers that question. Notice the careful application of paint on the bottom. That gives me just about the full set of manageable, usable (by one man) stoves. Don't have a No.1 Hydra (hard to use for cooking for one). Do have No.2, No.3, No.6, No.7 and now the Canadian 500. Also have a /|\ marked brassie, which I have heard called a No.5 but I've also seen the big multi burner propane unit called a No.5. Probably should get a No.12 for completeness but the real collecting focus is 1850ish-1945. Any I'm leaving out? Oh yeah, a Soyer. Also hard to cook for one.