Loose leaf books and systems for general business (1907)
Risque, F. W · St. Lous, Mo., Press of R.P. Studley & Co. · leaf 169
161 Loose Leaf Books and Systems. (F-4) SECTIONAL POST BINDERS. Another locking device, otherwise similar to F-2. … (G) SOLID POST— POST BINDER. Automatic clutch on posts.
Filing systems · Card system in business · Bookkeeping
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
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