The band of rust around the wall and the elevated base of the stairwell I had to hop off to take this photo suggest to me that this room had a false floor.

The Long Room

The band of rust around the wall and the elevated base of the stairwell I had to hop off to take this photo suggest to me that this room had a false floor.
Credit
Toby J
Taken
03/09/2017
Camera
Nikon D7100
ISO
160
Shutter
150 second
Aperture
ƒ/6.3
Focal Length
16mm
Lens
Nikon AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR
License
Copyrighted
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Jinshan Ironworks 台灣煉鐵金山廠