Public domain
COMMISSION ON INDUSTRIAL RELATIONS. H.P. PERRIN, PRESIDENT, TELEG. UNION, BEFORE COMMISSION
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Credit lineCOMMISSION ON INDUSTRIAL RELATIONS. H.P. PERRIN, PRESIDENT, TELEG. UNION, BEFORE COMMISSION. 1915-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.