Three mid-20th century paperback mysteries: "Dogwatch" by Carlyn Coffin (Croydon Publishing Company, 1946), "One Alone" by Van Siller (Bestseller Mystery No. 892), and "Devious Design" by D.B. Olsen (Bestseller Mystery, abridged edition).
Published by Croydon and The American Mercury, these books show noticeable wear to covers, spines, and edges, with creasing and discoloration consistent with age. All volumes are abridged editions, with original publisher details visible on title pages. See photos for Measurements if taken.