Collection le Verrou (The Lock Collection) consisted of 205 pocket-sized crime novels published in France by Editions Ferenczi from 1950 to 1959. Some were written by French authors using pseudonyms that sounded English or American, while other writers used their real names, such as Alexandra Pecker (yes, that’s a real name) and René Poupon (idem). Other books were written by U.S. or British writers and had been previously published. For instance, above you see Le singe de cuivre by Harry Whittington, which you might know as The Brass Monkey, and below you’ll find entries from Lawrence Blochman and English scribe Peter Cheney, better known as Peter Cheyney. The art on these books is generally quite colorful. The cover above was painted by Michel Gourdon, and below you’ll find another piece from him, many efforts from Georges Sogny, and a couple from as-yet-unknowns. We really like Ferenczi’s output, so expect us to share more covers from this publisher later.