12mo (18.5 cm), pp. 220. Red cloth boards, pictorial jacket with flowering hand grenade, original $2 price. Publisher's monogram logo on copyright page. The Nero Wolfe double mystery with "Booby Trap." Jacket has multiple significant chips, boards are worn at tail of spine with missing material, former owner's name scratched out on front pastedown. Binding is tight, pages are clean. Unusual to find in original jacket. (Penzler, pp. 18-20) Dust jacket present. First Edition.