- A wonderful set of wipe-clean activity cards for aspiring code-breakers!
- Includes Semaphore and Morse code, "Grid code" used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.
- Each card contains information about the code, an explanation of how it works and fun coding activities.
- Includes a special pen to write on the cards.
WARNING! Not suitable for children under 36 months because of small parts. Choking Hazard. Ink from pen may not be washable.
