grosset & dunlap charter communications ace books imprint mmpb first printing, not first mmpb edition
cover art by david bergen (source? - possibly credited in indicia - ?)
cover price $1.95
224pp. including titles, indicia etc, end pp. advertising, plus bound-in card advert/order form for merkin sf book club
aka ''journey beyond tomorrow'' (1962 and ff.), q.v., aka ''journey of joenes''