Artifacts 14
Every copy this mystery rests on, each with its own key and its distance from the original.
Photo1 step from object
Lt Col Charles I. Halt, USAF · Public domain (US government work, US Air Force)
Photo1 step from object
Lieutenant Colonel Charles Halt · Public domain
Photo3 steps from object
Simon Leatherdale (geograph.org.uk) · CC BY-SA 2.0
Photo3 steps from object
Simon Leatherdale · CC BY-SA 2.0