President Richard Nixon’s secretary, Rosemary Woods, demonstrates how she thought she might have accidentally erased 18-1/2 minutes of tape, when she reached to answer her phone and her foot extended to the “erase” footpedal, in 1974.
Ms. Woods’s typewriter is an electric, as best I can make out, an IBM. (Update, May 21, 2008: Ben Batchelor of etypewriters.com dropped by in comments to say it’s an IBM Model D Executive. Thanks, Ben!)
Good resource discovered in getting this image: The Watergate Files, presented by the Gerald R. Ford Presidential Library (at the University of Texas site). Image from the Gerald R. Ford Presidential Library.
Tip of the old scrub brush to Dr. Pamela Bumsted.