National Gallery of Art. Construction of ventilators, Mellon Gallery of Art III ca. 1920-ca. 1950.
Horydczak, Theodor, approximately 1890-1971
1 negative : safety ; 8 x 10 in.
#MellonGallery #Horydczak #Theodor #MellonGalleryIII #Construction #DistrictofColumbia #Galleries&museums #UnitedStates #Ventilation #Washington(DC) #photographyhttps://www.loc.gov/item/2019678800/