Bob Dylan is reportedly releasing a 7” single as part of Record Store Day 2013, according to an online round up of this year’s planned releases.

The 7” will comprise versions of “Wigwam” b/w “Thirsty Boots”, which may be taken from the forthcoming Bootleg Series Volume 10.

“Wigwam” was recorded in early 1970 for the Self Portrait album, and later released as single. The Record Store Day version is reportedly a demo. Meanwhile, “Thirsty Boots” is a Civil Rights era folk song written by Dylan’s Greenwich Village contemporary, Eric Andersen. Dylan recorded the song as part of the Self Portrait sessions, though his version has never been officially released.

In October last year, the Dylan fan site Isis reported rumours that recording sessions from 1969/1970, in particular the Self Portrait sessions, were being considered for Volume 10 – which this Record Store Day release appears to corroborate.

The Dylan camp has history of using Record Store Day to release prospective material from the Bootleg Series. Last November, Dylan released “Duquesne Whistle” from The Tempest album as a Record Store Day single, backed with an unreleased version of the Blood On The Tracks song, “Meet Me In The Morning”. “Meet Me In The Morning” was initially flagged up as being “taken from the forthcoming Bootleg Series Volume 11”, leading to speculation that the set might be drawn from Blood On The Tracks sessions. However, Record Store Day removed reference to the Bootleg Series shortly after.

The most recent edition of the Bootleg Series – Volume 9, The Whitmark Demos: 1962 – 1964 – was released in October 2010.

Record Store Day will publish a full list of this year’s releases on March 21.