I just saw "The Tuskeegee Airmen" on HBO. The Black cadets who are
expecting a white flight instructor get a Black one instead. He explains to
them that he is the best qualified instructor because he is the only
instructor on the base with any actual combat experience. As he makes this
introduction, in the background is one of those 7 ft. demo slide rules.
It's white, but I couldn't tell which kind (K+E, Dietzgen, etc).