Looks like he used acid since even his touch marks are effected,or he tossed some metal filings on his anvil and worked the hot piece on top,easy enough to try!Then again maybe your thinking of a japan finish like you see on old binoculars and such thats like a black crinkle paint.:confused:
You need to put 2 bbq tanks behind the regulator,simple plumbing using all hardline,ask the fellow at the propane store as to the fittings you need,also someones selling this setup on the web,zoller forge ??guessing. good luck,safety first!!!
I wish i was wearing my apron sometimes when my 8 year old kid fetches me a cold can that she has dropped,shakened,and rolled over to me, then says disbuds for you,dad :)