Dr Watson's pipe?

[olkofri]

But he drove the script girl crazy. She had to watch that Bruce didn't enter a room with one pipe and then leave it with another.

No kidding. I can see why other productions have actually commissioned the pipes being used from a manufacturer, like LOTR with Vauen.

 

[jguss]

Things were perhaps laxer then, although I'm sure exceptions are still made today; Jesse would know for sure. The article on Nigel Bruce also said that "Hitchcock used his own dog in the picture."