![](https://coimages.sciencemuseumgroup.org.uk/74/294/medium_thumbnail_1990_0459__0002_.jpg)
Musical cryptographic device
- Made:
- 1812
![Musical cryptographic device](https://coimages.sciencemuseumgroup.org.uk/325/510/medium_smg00047648.jpg)
Musical cryptographic device
Details
- Category:
- Mathematics
- Object Number:
- 2005-23
- Measurements:
-
Overall: 23 mm x 120 mm x 120 mm, 120 mm, .04 kg
- credit:
- Tesseract