A decades-long dispute over the ownership of the cannons included many twists, including concerns that they could be targetted by the Provisional IRA.

The Fender Stratocaster sold for £700,000 and a placed on the item brought the total to £889,400 (€1.069m).

The guitar belonging to the late musician and songwriter sold for £889,400 (€1,068,956) at Bonhams auction house.

Fifty artists who were confined to their homes during the Covid lockdown collaborated on the project.