General Post Office, Washington.
|
|
|
General Office, Washington, D.C.
|
|
|
The U.S. Post Office - Washington.
|
|
|
U.S. Post Office.
|
|
|
U.S. Post Office, Washington, D.C.
|
|
|
U.S. Post Office.
|
|
|
U.S. Post Office.
|
|
|
Post Office Building, Washington.
|
|
|
Model Room, Patent Office, Washington, D.C.
|
|
|
Model Room of Patent Office, Washington, D.C.
|
|
|
U.S. Patent Office,(South)
|
|
|
Patent Office.
|
|
|
Washington, the Patent Office.
|
|
|
New Wing, Patent Office, Washington, D.C., U.S.A.
|
|
|
Patent Office Court Yard, Washington, D.C.
|
|
|
Patent Office, Washington, D.C.
|
|
|
U.S. Patent Office.
|
|
|
The U.S. Patent Office.
|
|
|
U.S. Patent Office.
|
|
|
U.S. Patent Office.
|
|
|
The U.S. Patent Office.
|
|
|
U.S. Patent Office.
|
|
|
The U.S. Patent Office.
|
|
|
Washington, D.C., Patent Office.
|
|
|
The U.S. Patent Office.
|
|
|
U.S. Patent Office.
|
|
|
U.S. Patent Office, Washington, D.C.
|
|
|
Interior, Patent Office.
|
|
|
U.S. Patent Office, Washington, D.C.
|
|
|
U.S. Patent Office.
|
|
|
