No copyright registration was filed for the issue. There is no official on-sale date. The issue's "First Notes" publisher promotional page indicates it went on sale in December 1984. According to listings in Amazing Heroes #66, the expected on-sale date was December 21, 1984.
The page features letters from B.C. Moore, T.M. Maple, Greg McBryde, Lawrence G. Knight, and Cara Sherman Tereno. It also includes the issue's indicia and a miniature of the cover to American Flagg! #20.
The page appears between pages 8 and 9 of "Bullets & Ballots!"