This is a Du Pont de Nemours Powder Company Instructional Pamphlet (the E. I. Du Pont de Nemours Powder Company was established in 1802 in Louviers, Colorado, Hercules, California, and Du Pont, Washington).
This pamphlet was found in an abandoned mine in Leadville, Colorado.
Inside this pamphlet are two pages outlining "instructions and rules for transporting, storing, handling, and using high explosives". The instructions go on to explain how to make primers, tie fuses, and loading holes. "NOT TO USE FROZEN" is repeated in the warnings.
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