Maurice Loebenberg

Assisted by Raymond Heymann, Loebenberg put to use his skills as an engraver and began creating false papers on a large scale.

He made contact with the Armée juive (Jewish Army) and formed the Maurice Cachoud group (after his nom de guerre).

Author Pierre Piazza describes Loebenberg's work as a forger: “In 1944, the sophistication of this forgery service was such that it made packets of false papers intended to feed factories, groups of deserters, and Jews in hiding.

As complete as they were varied, and easy to use (explanatory notes were attached), these packets from the perfect forger were almost small field laboratories.” Loebenberg's group produced an estimated 20,000 or more identity cards from September 1943 to March 1944.

In fact, this was Karl Rehbein, a German agent responsible for the massacre of young members of the resistance who were shot in the Bois de Boulogne.