Commemorating the 50th Anniversary of the First Workmen's Compensation Law in the United States

FIRST DAY OF ISSUE COMMEMORATING N 50th Anniversary Art Craft OF THE FIRST WORKMEN'S COMPENSATION LAW IN UNITED STATES 1911-1961 SEP 4 9-AM 1961 WIS MILWA FORWARD WOR MEN'S COMPENSATION LAW 1911 1961 WISCONSIN FIRST DAY OF ISSUE ATES POSTAGE