A Bolin grand piano played by Swedish pop group ABBA on some of their biggest hits is up for auction at Sotheby's.
Valued at up to £800,000 ($1.2m), the lot will headline a sale of rock and pop memorabilia in London on September 29.
Dr Philip W Errington of Sotheby's told the Belfast Telegraph: "The opening piano glissando from Dancing Queen is one of the most distinctive sounds of the Seventies and we are delighted to offer the actual instrument used by the legendary ABBA in their major recordings.
"The piano itself is an instrument of real importance and with the added Abba provenance we expect it will have worldwide appeal."
The piano was first built for legendary jazz pianist Bill Evans, who explained: "It is one of the most unbelievable instruments I've ever played. I fell in love with it the first time I touched it."
In 1967 it was bought by Metronome Records in Stockholm - the music factory that produced some of ABBA's biggest hits.
The piano is accompanied by a letter of provenance from band member Benny Andersson.
Click here to take a look at our phenomenal selection of music memorabilia for sale.
Please sign up to our free newsletter to receive exciting news about music memorabilia auctions.