For the first time since legendary music photographer Jim Marshall's death in March 2010, his iconic photos of Johnny Cash have gone on show to fans at Snap Galleries in central London. Here's a shot of Cash close up at Newport Folk Festival 1964.
Jim Marshall followed Cash throughout his career, getting unique access to the great man's performances and work. Here he snaps Johnny as he gets out of the bus at Folsom Prison in 1968.
Johnny Cash shakes hands at Folsom Prison in 1968 in this shot by Jim Marshall. The photo is part of an exhibit that sees some special limited edition prints being sold to fans for the first time.
The exhibit includes rare prints signed by Jim Marshall, like this definitive shot of Cash flipping the bird at San Quentin prison in 1969.
Jim Marshall joined Cash for many of his prison concerts where Johnny played for the inmates. Here the singer stands in Folsom Prison in 1968.
Cash started performing for prisoners from 1958 and released two live albums from his jail-based gigs. His first, 'Johnny Cash at Folsom Prison', was recorded in 1968 and made our recent greatest live albums countdown.
Johnny Cash against the wall at Folsom Prison in 1968 where he performed 'Folsom Prison Blues' at one of his many gigs for inmates. Jim Marshall got unique access to shoot Cash during his 1968 gig.
A shot of Johnny Cash as he visits Greystone Chapel at Folsom Prison in 1968 - part of the new Jim Marshall exhibit at London's Snap Galleries.
Cash poses outside Folsom Prison. Jim Marshall joined the iconic singer for his 1968 gig there when he recorded one of his live albums.
Jim Marshall gets this intimate shot of Johnny Cash and June Carter Cash at home - the photographer followed Cash during his career.
Johnny Cash and Bob Dylan - the pair were friends and neighbours in the late 60s. Jim Marshall got this shot as they chatted over their guitars in 1969.
The legendary singer records 'Johnny Cash At San Quentin' onstage at the prison in 1969. Jim Marshall was there to capture the moment.
Johnny Cash and Waylon Jennings who he recorded and toured with in the 1980s as The Highwaymen.
Johnny Cash performs at Thanksgiving 1969. It's the last week of ‘Pocket Cash - Johnny Cash by Jim Marshall‘ at Snap Galleries before it closes on April 2.
Jim Marshall's images from the exhibit have also been put together for a book 'Pocket Cash'. For more information on the exhibit and Jim Marshall's work, visit snapgalleries.com now.