Main content
The Black Chamber and letter locking technique used by spies
Nadine Akkerman, author of Invisible Agents: Women and Espionage in Seventeenth-Century Britain
Duration:
This clip is from
More clips from Female Convicts and Invisible Agents
More clips from Time Travels
-
![]()
Vikings and Fluorescent Bunnies
Duration: 09:53
-
![]()
Ashley Dee
Duration: 03:37
-
![]()
Martha McGill
Duration: 03:57
-
![]()
The evolution of the kitchen in Scottish homes
Duration: 01:57
