@writingslowly Yes, they certainly were, and I’m using a few of those in that manner as well. By mid-century most office workers would likely have had one or two in their office for use in daily work while the rest of their broader filing needs, especially in larger businesses and organizations, would have been handled centrally. As an example, as early as December 1910, W. K. Kellogg, the President of the Toasted Corn Flake Company, is quoted touting the invaluable nature of Shaw-Walker’s filing system at a time when his company was using 640 drawers of filing. #.