These are the heaters that were used to heat the trash cans filled with water at company sized field messes I have some NOS maybe made as late as 1988 but to WWII specs for sale in their original wooden crates they cost 75 dollars I sell them on eBay under my handle jrjohnryanjr i have 100% positive feedback from 100+ sales. I usually sell them for remote hottubs for hunters or hippies my E9 uncle said that he used them like this. They are located in PA freight runs about 70 dollars anywhere in the lower 48 my email is jrjohnryanjr@yahoo.com I have pics