London: Everett, nd [1910]. First / First. Paperback. Very good condition. Wrappered issue. It's unclear if there was an earlier hardback issue, but the book is quite uncommon in any form. "…a Future War story which hints at a possible Pax Aeronautica" [SFE, Clute] A little light edgewear, spine is creased only from the glueing not from reading. A little spotting to the prelims but a solid copy overall. Very Good. Item #13399