The “Light not of this world”.
First atomic detonation, and first of the “Trinity Tests” (the other two tests- and YES- Hiroshima and Nagasaki were, and still are, considered and listed as “Tests”), July 16, 1945.
Also included is the back of the photograph.
But don’t worry, the photo is now declassified.
From my personal collection. If used, please tag or credit as such. Thanks.