David Gilmour's 1969 Black Fender Stratocaster fetched £3.1m, which is a world record for any guitar at auction.
Pink Floyd star David Gilmour has sold his guitar collection for a record amount at auction, raising money to fight against climate change.
The 73-year-old singer and guitarist sold more than 120 instruments for a total of almost £17m.
The Black Strat was used on albums including The Wall, Wish You Were Here and Dark Side of the Moon.
More than 2,000 bidders from 66 countries registered for the sale, which was held at auction house Christie's in Rockefeller Centre in New York.
The auction house said it delayed the start of the sale by one hour after an "unprecedented number of bidders" turned up, leading a second saleroom to be opened up to accommodate the crowds.
Christie's said Gilmour's collection was the most valuable sale of musical instruments in auction history, beating a previous record held by Eric Clapton.
