Bullet-proof glass
A guard would be on one side of this glass with a rifle - the glass offered a view of the cafeteria.
Album: Brushy Mountain Prison Tour
Creation Date: July 28, 2019
Modification Date: July 30, 2019
Camera: NIKON CORPORATION / NIKON D5100
Lens: Nikon AF-S DX VR Zoom-Nikkor 18-55mm f/3.5-5.6G
Aperture: f/5.3
Focal Length: 44 mm
Exposure Time: 0.016666666666666666
ISO: 3200
MeteringMode: 5
Creation Date: July 28, 2019
Modification Date: July 30, 2019
Camera: NIKON CORPORATION / NIKON D5100
Lens: Nikon AF-S DX VR Zoom-Nikkor 18-55mm f/3.5-5.6G
Aperture: f/5.3
Focal Length: 44 mm
Exposure Time: 0.016666666666666666
ISO: 3200
MeteringMode: 5