I'm at home watching an episode of the Twilight Zone. The episode is irrelevant. What is relevant is that the set of an office uses doors that obviously are made of curly wood. They are slab doors so I'm assuming they use veneer. But it seems that no matter what show I'm watching the doors are curly wood. Sine they are black and white I cannot tell if they are oak, walnut or what. Twilight zone, Dick Van Dyke, Perry Mason. Any 1950's or 60's show. And the curly seems to be used almost exclusively. Does anyone have any information on this? What kind of wood is it? and why do they use curly wood or veneer?

Very Curious.