[Preliminary drawings for murals in the Post Office Building in Washington, D.C.]

[Preliminary sketch for the murals at the Post Office Department Building in Washington, D.C.]

United States Post Office, Parcel Post. Interior, train track

[Old Nassau Street Post Office.]

[Preliminary drawings for murals in the Post Office Building in Washington, D.C.]

United States Post Office, Parcel Post. Interior of 2nd and 3rd floors to show brickwork

United States Post Office, Parcel Post. Interior of 2nd and 3rd floors to show brickwork

[Preliminary sketch for the murals at the Post Office Department Building in Washington, D.C.]

[Preliminary sketch for the murals at the Post Office Department Building in Washington, D.C.]

[Preliminary sketch for the murals at the Post Office Department Building in Washington, D.C.]

[Preliminary sketch for the murals at the Post Office Department Building in Washington, D.C.]

[Preliminary sketch for the murals at the Post Office Department Building in Washington, D.C.]

Old Post Office and Trolley

Old Post Office and Trolley

Old Post Office and Trolley

Old Post Office and Trolley

[Post office in the GE Building, 30 Rockefeller Plaza.]

New York Post Office

Old Post Office

Old Post Office