Smithsonian Patent Blg

Smithsonian Institution – Patent Building Remodeling – Foundation Walls – 1500 Cu. Yd. – Washington, D.C.

DC-464 - Smithtonian Patent Office Blg - 01_1 DC-464 - Smithtonian Patent Office Blg - 05_1 DC-464 - Smithtonian Patent Office Blg - 04_1
DC-464 - Smithtonian Patent Office Blg - 02_1 DC-464 - Smithtonian Patent Office Blg - 03_1