Distributed to newstands in September 1957. This issue includes 10 pages of paid advertisements.
The stories in this issue all bear the logo reading "The editors guarantee that this is one of the most Astonishing stories you've ever read!" used by the cancelled Astonishing (Marvel, 1952 series) perhaps indicating that this issue was built on an unpublished pre-implosion issue.
Some information on this issue supplied by the Timely/Atlas list. Distribution date from Joseph Marek's Marvel Comics Group history website.