US Patent and Trademark Office Gallery US Patent and Trademark Office Excavation, Keystone Projects, Sitework US Patent and Trademark OfficeDoug2019-08-16T15:49:49+00:00
National Museum of the Marine Corps Gallery National Museum of the Marine Corps Excavation, Sitework National Museum of the Marine CorpsCindy2019-08-16T15:49:30+00:00
