
1980 Organized Labor Plate Block Of 12 15c Postage Stamps - Sc# 1831 - MNH, OG - CW21a
On September 1, 1980 in Washington DC; the USPS celebrated the American Labor movement and its founders. Some of the objectives of the movement include free public education, child labor laws, an eight-hour work day, and payment of wages in legal tender.