Regulations Governing the Storage, Transportation, Handling, and Use of Explosives on All Work under the Control of the Panama Canal and the Panama Railroad

Mount Hope, C. Z.: Panama Canal Press, 1931. Revised September 1, 1931. Paperback. Fair. 20p. Small softcover pamphlet in original wrapper. 23cm. Soiled and well-used. A small pink broadside labeled "Supplement Number 1" and dated 2/27/36 is attached to the back cover with a very rusty paperclip. A typed revision or explanation of the section on turning dynamite boxes twice monthly is pasted inside the front cover. OCLC locates three copies of later editions (Stanford, Indiana State Library and Wisconsin Historical Society).