Murder Mutuel/Bye,Bye, Baby! by: McKnight, Bob And Bond, J. Harvey (Pseudonym Of Russell Robert Winterbotham)
Softcover. NY, Ace Books, 1st, 1958, Book: Very Good, Dust Jacket: None, Paperback, Two mystery novels bound back-to-back. D-279, 139, 149 pages. Small ink notation to first leaf on both titles. Excellent condition.