Mid Century Gunlocke chairs

I paid $75 for 2 mid century Gunlock chairs at a storage auction.  The chairs were made in 1966 and they have a plaque "Property of U.S.Dept of HEW".  I did some research,   In 1979, The Department of Education Organization Act was signed into law, providing for a separate Department of Education. HEW became the Department of Health and Human Services, officially arriving on May 4, 1980. 

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