- Pencil Sharpener by T.A. Henderson, 1886...
- Pencil Sharpener by E.S. Stimpson, 1884...
- "Dictaphone" Type X Dictating Machine, c. 191...
- "The Dictaphone" Dictating Machine, c. 1930...
- Complete Dictaphone Dictating System, c. 1915...
- Gestetner's Neo-Cyclostyle Duplicating Machin...
- 2 Duplicating and Copying Machines...
- 2 Duplicating Machines...
- Poster "Opalograph" Duplicator, c. 1920...