Used to be a standard of The Farriers at Reddith Folk Club in the early seventies. Don't know where Dick Brice got his tune from, but although it was similar to the one later used by SS, his treatment was much darker. It is still guaranteed to stop a song session in it's tracks which is one reason I don't sing it often. I have seen text very similar to the lyrics in a translation of Boccaccio's 'Decameron'