This a a copy of the 3 page document issued by the war department. I do not know who it was issued to, exactly who issued it or when exactly it was issued. I am sure that I do not have the entire document.
It is a general overview of the information given to Roosevelt and Truman that led to the decision to make the bomb, an overview of why and how the chose the targets and a brief overview of the Manhattan Project which lists Oakridge Tennessee, Hanford Washington and a remote place in northern New Mexico. I found it interesting they do not mention Los Alamos by name. That makes me think it was written with a few years of the end of World War II.