Led Zeppelin IV, released by the legendary rock band in 1971, featured some of the group's most famous tracks such as Stairway to Heaven and Black Dog. The cover of the album is iconic, too, featuring what was presumed to be a painting of an older gentleman hauling a pile of sticks on his back, while also using a stick as a walking aid.
It was believed by fans to be a photograph of an old painting that lead singer Robert Plant found in an antique shop near his home in Berkshire, England. That was until Brian Edwards, from the University of the West of England (UWE), found the original photograph while researching archive imagery for another project.
