Authenticating paintings is no easy task. At times, it requires forensic specialists, academics, high courts and millions worth of legal fees. But for a portrait of Sir Francis Drake, proof of authenticity required a wart.
원문출처 : https://www.cnn.com/style/article/francis-drake-wart-authentication-intl/index.html
원문출처 : https://www.cnn.com/style/article/francis-drake-wart-authentication-intl/index.html