North Butte Mining Company 1919 Workers Guide/Card, 'Ventilation' - MT Montana

Description

This came in with some other paper from the North Butte Mining Company, Butte, Montana. 'Ventilation.'
DATE:
1919
SIZE:
About 4.25" x 7.25"
CONDTION:
Generally clean condition.
GUARANTEED ORIGINAL - NO REPRODUCTIONS
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