Experts cleaning a supposed imitation of a Botticelli painting have discovered it was actually created in the Renaissance master’s own studio. The work had been thought to be a later copy of the Madonna of the Pomegranate, painted by Sandro Botticelli in 1487. But English Heritage conservators changed their minds after scraping thick yellow varnish off the painting. Extensive tests showed it did in fact originate from Botticelli’s 15th Century workshop in Florence. More details at this link