Artifacts 14
Every copy this mystery rests on, each with its own key and its distance from the original.
Scan1 step from object
The Black Vault · public-domain
Document2 steps from object
Ian Ridpath · public-domain
Scan1 step from object
Lt Col Charles I. Halt, USAF · Public domain (US government work, US Air Force)
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
Audio2 steps from object
Charles Halt (recording); copy hosted by Ian Ridpath · unclear (Halt's own recording; no licence stated)
Document2 steps from object
David Clarke · Crown copyright (the files); the commentary is Clarke's
Scan1 step from object
The National Archives (digital copy) · Open Government Licence v3.0
Scan1 step from object
The National Archives (digital copy) · Open Government Licence v3.0
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