Unveiling of Model for "The Federal City: Plans and Realities" Exhibition at the Smithsonian Institution Building, or Castle, , Smithsonian Institution Archives, Unveiling of a model for the exhibition "The Federal City: Plans and Realities" in the Office of Exhibits Central workshop, with Wilcomb Washburn, curator of the exhibition and Director of the Office of American Studies; Charles Atherton, Secretary of the Commission of Fine Arts; John Nolen, Jr., past director of the National Capital Planning Commission; and Susan Hamilton, Smithsonian Bicentennial Coordinator. They are gathered around a model showing the Mall and Pennsylvania Avenue as envisioned by the Senate Park Commission in 1902..