Instagram photos worth $90,000?

A series of personal Instagram images have gone on display as part of the Frieze Art Fair in New York, without any warning or permission being sought from the photograpers themselves. The photographs are being displayed by controversial artist Richard Prince who has a history of submitting art that he describes as ‘re-photographing’ – like re-tweeting only with works of art.

Prince takes existing images from magazines, advertisments or books, alters …