Hi Guys I have been fettling this Rogers-Akron M1950 (Coleman) stove dated 1952 I got it on the "bay" for a great price. I got in contact with Mike at Old Coleman parts (great service by the way) and got all the bits I needed to get her going. I fired her up this afternoon 4minutes 20 seconds to boil 750mils not bad in my book. Of course I gave it hot water dunk test under pressure before I put a flame to it. Enjoy, Peter.