A LOST portrait by the Glasgow Boy painter Sir John Lavery has been discovered in an attic and will be sold at auction.

The portrait, entitled A Gipsy, was found by the auctioneer Nick Burns, of Lindsay Burns and Company of Perth, in the attic of a vendor in Perthshire.

Mr Burns established that the painting is an early work by Lavery, and it is being put up for auction at an antique and fine art sale on Tuesday.

The painting, from 1881, is expected to reach between £10,000 and £15,000.

The vendor, who remains anonymous, was “astonished” to discover the potential value of the painting.

Mr Burns said he was “99.9%” sure the work was by Lavery, who along with Sir James Guthrie, Arthur Melville, EA Walton, George Henry and EA Hornel were among the leading group of Glasgow Boys.

The canvas is signed and dated on the front whilst being inscribed on the reverse with the title of the picture and the address, 101 St Vincent Street in Glasgow, where the artist had a studio.