May first discovered stereoscopic photography — a technique whereby two slightly offset two-dimensional images are combined to give the perception of three-dimensional depth — as a child, and in 2008 revived the London Stereoscopic Company, a business originally set up in 1854 to sell stereo pictures and stereo viewers to the public. The original company faded away in the 1930s, but now restores sand republishes Victorian stereo cards, as well as creating new sets relating to astronomy and to the guitarist’s work with Queen.