Walworth Company Boston WW II era employee ID & United Steelworkers Dues Cards For Sale

World War II era employee identification card issued by the Walworth Company, Inc. at their Boston Works branch in Massachusetts (During World War II, industrial plants like the Walworth Company produced critical valves and pipe fittings for the military. As a result, strict security measures were put in place. Photo ID cards were issued to all workers to prevent espionage and verify the identity of the thousands of civilian employees who contributed to the wartime production effort) ... Also included in the lot are 4 United Steelworkers of America Dues Ccheckoff cards 1943/1944/1945 (very early membership cards in what is now one of North America's largest industrial unions, which was founded in 1942) During World War II, steel production was highly critical for war mobilization. The National War Labor Board granted maintenance-of-membership and dues checkoff provisions to unions to maintain uninterrupted industrial output .... Jsb 332