G som i hemlig

This documentary runs for 43 minutes and features notable contributions from Hans Villius. It delves into the history and significance of the G-printer, a crypto machine that played a role in World War II communications.

The film highlights the work of mathematician Arne Beurling from Uppsala University, who uncovered the secrets behind this cryptographic technology. Collectors of documentary films may find this title particularly interesting due to its focus on a unique aspect of wartime technology and cryptography.