Paperback, 1st edn. Arguably the rarest of the 'London Underworld' books. A fiction based on fact (the minor characters, a figment of the author's imagination, typify the kind of person we have all heard or read about). The reader will readily be able to distinguish between those real, known people at the core of Jack Spot's story. 192pp. mass market p/back. The cover illustration extends to both front and back (unusual for a Janson title, see images). With the usual browned pp., v. sl. slanted sp., small crease across lower corner of fr. cover o/w a Vg+ copy of an extremely scarce title.