Oppenheim, E. Phillips, — Peter Ruff and the Double Four.

Boston, Little Brown, 1912. 1st ed. G. Pictorial cover shows woman with her purse flung aside in a begging position before a well-dressed man. Frontis shows a. man and woman seated at a table with the woman asking "Whatever is the matter with you?" as another couple walks in on them. The Double-Four is a secret organization in crime and international politics.