前因: 大英博物馆收藏了 丢勒的石头浮雕 “`The Naming of John the Baptist,'' 实际上是1642年纽伦堡的Georg Schweiger伪造的, 但是大英博物馆收藏了200年后才知道这是赝品。
同时期在1990年,开始有大量报道, 通过新的激光扫描的普及,在八十年代末,大量激光扫描后伪造的赝品大量出现在市场上。
博物馆对赝品的反应:
大英博物馆的Mark Jonese :“unbeatable evidence,'' 无懈可击的证据,``took to be the hallmarks of authenticity'' 权威验证的印鉴
‘'Oh, I hate the word `expert.' What I'm fascinated by is the fact that if you've got a painting on your wall signed `Joe Bloggs,' it's worth, say, 100 pounds. Change the signature and it's worth 100,000. And when it's found to be a fake - it's either worth 200,000 or 20 pounds.''