It's from 'The Fairfield Crane'.

Some dispute about authorship and it's claimed for both Archie Fisher and Norman Buchan. The story I heard was that Norman and Archie were in a small group to put together a radio programme about shipbuilding on the Clyde and at the last minute there was a need for something to fill a space... The tune is the one that the fiddler Bobby Campbell had previously used for 'Queen Eleanor's Confession' on an LP by The Exiles.

This will make sense to anyone who knew the Glasgow folk scene in the 60s -- Norman was an inspiration to many (setting up Rutherglen Academy Ballads Club in 1957, running a folk club for years in the Corner House, putting on big concerts with the likes of The Weavers, Pete Seeger, Cisco Houston etc. and running an open house where people could come to listen to his record collection -- Ray and Archie Fisher were regulars, as was Norman's brother-in-law Enoch Kent (who recorded with The Reivers and then The Exiles).