The first oil painting ever exhibited by Joseph Mallord William Turner is set to go to auction, having been lost for over 150 years.

Titled The Rising Squall, the artwork depicts a dramatic scene of a former hot spring and spa in Bristol, viewed from the eastern bank of the River Avon—before the Clifton Suspension Bridge was constructed.

The painting traveled across the globe and eventually returned to the UK, remaining unrecognized as a Turner original for more than a century. His signature was uncovered only last year, during a restoration and cleaning process.

The piece will be on public display at Sotheby’s in London from June 28 to July 1, ahead of an auction where it’s expected to fetch up to £300,000.

Julian Gascoigne, a senior specialist at Sotheby’s, described the painting as “a fascinating and very instructive insight into his early style.” He noted that the work shows Turner—widely known for his watercolours—as a teenage artist full of “ambition and skill” exploring oil painting.

The painting debuted at the Royal Academy in 1793, just three days after Turner’s 18th birthday. It was purchased by Reverend Robert Nixon, a customer at Turner’s father’s barber shop. Nixon’s son later inherited it, but the painting eventually faded into obscurity. According to Gascoigne, its last known exhibition was in Tasmania, Australia, in 1858.

Turner created the painting during his first artistic tour as a teenager, traveling from London to the West Country. Gascoigne explained that Bristol would have been an accessible and affordable destination for a young artist based in London, offering the kind of dramatic, sublime scenery Turner was drawn to.

Although the painting was mentioned in early obituaries of Turner, it was mistakenly identified as a watercolour for over a century, and thus was excluded from catalogues of his oil works.

Until its rediscovery last year during restoration, experts believed Turner’s earliest exhibited oil painting was Fishermen at Sea.