National Gallery of Art. Roof of National Gallery of Art for International Nickel Co. I ca. 1920-ca. 1950. Horydczak, Theodor, approximately 1890-1971 1 negative : safety ; 8 x 10 in. #Horydczak #Theodor #TheodorHorydczak #America #DistrictofColumbia #Galleries&museums #Roofs #UnitedStates #Washington(DC) #photography