Iron
- 1910 Seth Thomas Tower Clock
- 7 Gracie Square Entrance Assessment
- Allied Textile Printing Site
- Arkansas Museum of Natural Resources Historic and Heritage Sites
- Armed Forces Retirement Home Fence
- Battery Maritime Building
- Bodie State Historical Park
- Carlisle Barracks Civil War Cannons
- Carshalton Gates
- Chattanooga National Cemetery Memorial Arch
- Department of Justice Aluminum Night Doors
- Department of Justice Iron Night Gates
- Fort Belvoir Historic Buildings
- Fort Christian
- Historic Congressional Cemetery
- Historic White House Gates
- Kansas Senate Chamber
- Kansas Statehouse Metals Investigation
- Mount Rushmore Tool Survey
- New York High Bridge
- Oak Bluffs Soldiers’ Fountain
- Old DC Courthouse
- Pirate Ship Whydah Objects
- Replica of the Liberty Bell
- Replica of the Statue of Liberty
- RMS Carpathia Objects
- RMS Titanic Big Piece
- RMS Titanic D-Deck Door
- RMS Titanic Davit Base and Davit Arm
- RMS Titanic Eccentric Strap
- RMS Titanic Objects
- Schuylkill Cannon
- St. Mary's Church Portico Gates and Floor
- Ten Stamp Mill and Nine Ore Cars and Tracks
- The Governor's Residence, US Virgin Islands, "Kathrineberg"
- Union Soldiers Monument
- US Holocaust Museum Ross Building
- Veterans Affairs Building
- Victoria Park Bandstand
- Vizcaya Hurricane Damaged Metals
- WWI Japanese Field Guns