It was used for military communication between front lines and Paris. It was also famously used for an early securities fraud scheme https://www.1843magazine.c

It was used for military communication between front lines and Paris. It was also famously used for an early securities fraud scheme https://www.1843magazine.com/technology/rewind/the-crooked-timber-of-humanity https://www.1843magazine.com/technology/rewind/the-crooked-t...