I picked this up yesterday, cheap enough. It is a (per the metal tag) "114 US Gallon" propane tank. I don't think it would hold 55 gallons. But whatever. I'm going to cut it, weld it, grind it, burn it out, paint it, and smoke some Q in it. Name it PORKY. A local propane company has one of these sitting in a row of scrap tanks. It is pink and has ears and a snout welded on one end and a curly tail on the other. They will not sell scrap tanks to the public because of the nanny state. The one I bought is a better deal anyway. It was used as an air tank. No propane to deal with. And don't get me started about "the pores in the metal" crap. More pics later as I get time to work on it.