Figure 1
Globe-Wernicke: Steel Filing Equipment (Cincinnati, 1931), p. 3. Reproduced with permission of Hagley Museum and Library.
Figure 2
Library Bureau: Vertical Filing (Boston, 1924), p. 54 (Source: Author’s collection).
Figure 3
Shaw-Walker: How to File Letters and Cards (Muskegon, MI), 1920, p. 12. Reproduced with permission of Hagley Museum and Library.
Figure 4
Shaw-Walker: How to File Letters and Cards (Muskegon, MI), 1920, p. 15. Reproduced with permission of Hagley Museum and Library.
Figure 5
Library Bureau: Vertical Filing (Boston, 1924), p. 36 (Source: Author’s collection).