No Lone Zone - SAC Two Man Policy Mandatory
12 December 2009. At the Titan Missile Museum / Site 571-7, Sahuarita, AZ.
Most areas of the Titan launch complex were "no lone zones", requiring two-person control. This sign is stenciled on one of the silo access hatches.
Nikkor 50mm/1.4 AF-S lens ZF.2 (@ f/2.0), Nikon D3s camera (@ ISO 1000); available light, handheld.
No emulsions were harmed in the making of this image.