Above is a very nice uncredited cover for L’homme san nom, aka The Man Who Was Nobody, written by Edgar Wallace in 1927 and republished by Hatchette as an entry in its Collection L’énigme, or Enigma Collection, 1940. The main character here isn’t the homme—this is actually part of a series starring Wallace’s crime solving creation Marjorie Steadman. It was later made into an episode of the television series The Edgar Wallace Mystery Theatre.
Robbery and riches are fine, but this next part is what he really enjoys.