 |
| This French cipher disk was made from silver by Nicholas Bion (1652-1733). He was a maker of mathematical instruments to King Louis XIV. (Photo by Ralph Simpson) |
|
| This French cipher disk was made from silver by Nicholas Bion (1652-1733). He was a maker of mathematical instruments to King Louis XIV. (Photo by Ralph Simpson) |
Contributors and Credits:1) Ralph Simpson <ralphenator(at)gmail.com>
Back To Menu Page Apr 28/12