New York / Hamilton OH: The Mosler Safe Co., 1950. Pamphlet. 6th printing of this 3rd edition: 16p., illustrated with vignette b&w photoillustrations of quite a number of types of file-drawers, safes big & small, and --the instructional part-- close-ups of the metal labellings and how to read these. Softbound self-wraps, 11x8.5 inch stapled pamphlet; slightest edgewear, staples have a touch of rust, front & back covers bear the rubberstamp of a San Francisco dealer in safes. A very good copy, clean, sound and unmarked.
"Builders of the famous Bank Vaults that withstood the atomic bomb attack at Hiroshima"