In the 6th Bond film, You Only Live Twice (1967) , one of Blofeld's possessions is a Madonna of Hans Holbein, best exemplified as the Darmstadt Madonna:
What is the reason it is in the film? I know the work is notorious for having many copies which have confused experts as to their authenticity; is that the reason?
P.S. I have not read any of the books on which films are based, so if the answer is there, I would not know it.