Deardorff, specifically, "L.F. Deardorff & Sons, Inc." was a manufacturer of wooden-construction, large-format 8"x10" and larger bellows view cameras from 1923 through 1988. Various models were constructed and used mostly by professional photographic studios.
Read more about Deardorff: Family History, History of The Camera Company, Model History, General Features, Photographers' Experiences in Using The Camera, Publications Showing Deardorffs, Deardorff Copies