Today's score, a much-used 400B that I snagged at a near steal price. Burner bowl has a bit of a tweak to the starboard side: As Colemans are wont to do, it fired up on the fuel that was in it: And soon settled down: Date code. I would have preferred an older stove without the plastic pump retainer, but frequently the perfect is the enemy of the good and one must pounce upon the opportunities that present themselves. I'll give it a cleaning, tweak the burner back straight, give it some fresh fuel, and glue the instruction label back on. The flame goes orange occasionally and I think fresh fuel will go a long way towards fixing that. It's QUIET compared to my roarers, lights immediately without priming, and is much more powerful than the 502. I think this is going to become the patio brew-up stove because of that.