and churchill was devoted to derek cudlipp.> "made for and worn by sir winston churchill." >> that's right. >> any way to get a closer look? >> for you, i'll take them out. >> you would? >> yes. he wanted to maintain churchill's very particular oratorial style. >> a lisp. >> precisely. in order to do this, he added clasps to the side. and these would just keep the dentures slightly proud of the palate and allow a flow of saliva around them. and this maintained that very famous lisp. >> you think any dental technician could have made those? >> no. these are extremely rare and very, very difficult to make. >> churchill makes clear he knows that when derek cudlipp breaks some personal news to the prime minister. >> he told churchill that his papers had come through to go into the army, and churchill literally just tore them to shreds in front of my father's face and said to my father, "you're not going anywhere. you're staying here with me." >> because of his dentures. >> because of his dentures, yes. >> you ask, what is our aim?