ace books mmpb undated° second printing, still states first book publication on front cover
cover art by jack gaughan (retained from first edition ace mmpb)
cover price 60¢
160pp. including titles, indicia etc, end p. advertising
° - near-identical with first edition, the five-digit system cat# allocated this printing implies (does not prove) stocks of G-626 remained and were deemed to've been (re-)numbered 10700