The vendor's Father played in a band named the Jaguars in the 1970s and one of his fellow band members obtained this amp and cabinet directly from John Paul Jones in 1977. He was working at a guitar shop on Charing Cross Road, London at the time and was contacted by John Paul Jones' assistant who told him that Jones wished to dispose of three such set ups as he was upgrading his stage equipment. He purchased all three sets and, as they were at that time wired for 120 Volts for use on stage in the U.S., he changed them over to U.K. voltage and gave one of them to the vendor's Father.
These Acoustic bass stacks can be clearly seen in photographs and footage of Led Zeppelin on stage as early as the Bath Festival on 28 June, 1969 and up until 1976. This particular stack can be seen in footage throughout their film The Song Remains The Same released in 1976. An article published in Beat Instrumental in 1976 which lists Led Zeppelin's equipment details the serial numbers of this cabinet and amp along with the other two stacks.
Photographs courtesy of Jorgen Angel/Redferns and the Lancashire Evening Post.