This sleek blue building, constructed in 1963, is another mid-century modern gem in downtown Silver Spring. Built three years after the American National Bank Building, the Operations Research Institute building was designed by prolific local architect Ted Englehardt. Previously we blogged about Englehardt’s Weller’s Dry Cleaning. For the Operations Research Institute, Englehardt designed an International Style office building with beautiful turquoise spandrel panels made of porcelain enamel.

Developer Carl M. Freeman moved his offices here in 1964. The firm occupied the first and part of the second floors. Freeman, who pioneered the modernist garden apartment in the DC area, was at this time one of the top 12 builders in the country.

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