Amazon.com gives the publishing date as 2007-05-01 as of 2012-12-14.
Reprints in facsimile the lead novel (p 6-95) and the non-genre air-war short story “Suicide Twins” from the September 1935 issue of the pulp magazine. Both are written by Robert J. Hogan.
All G-8 reprints in this series by Adventure House are reprinted in order of original publication.
”G-8 Speaks” is a letter section, and it opens with a short introductory essay by G-8 (Robert J. Hogan).
Unnumbered pages are advertisements and blank pages.
Volume 6, Number 4.
All illustrations, including those of the non-genre stories, are by John Fleming Gould.
Contains many spot illustrations and character portraits that are either filler and drift from one issue to another, or are cropped from the larger full-page illustrations.
The front cover of the facsimile has been restored from the original.
The original G-8 and His Battle Aces magazine was published by Popular Publications, now Argosy Communications.
The original editor of the pulp is uncredited. This edited version of the pulp is presumably edited by John Gunnison, the publisher of Adventure House.
The original pulp cost $0.15, this facsimile costs $12.95 in Canada.
G-8's wiki page is: http://en.wikipedia.org/wiki/G-8_(character)#List_of_G-8_and_His_Battle_Aces_titles.