I picked up a 413g on craigslist for $15.00 today. I cleaned it up a little and filled it with fuel and started right up. I thought I had a problem with the stove shutting off. So I went out to Coleman.com and looked at the trouble shooting page. They say it can take up to 2 minutes for the burner to shut off. I timed it and it was 2 minutes and 10 seconds. Not bad for a 34 year old stove. It was made on 7/75. I also got a duel fuel coleman 295a for $25.00 new in the box.