On the battlefield, the accumulation of secret intelligence in one of the most important weapons that can be used to gain vital advantages. The American War of Independence was no exception. Heroic patriots adeptly gathered information to help win the cause of liberty. The covert operations of civilian and military spy networks in America and abroad used the latest technology - disappearing ink, complex ciphers, codes, and propaganda - all the while maintaining operational security. Commander-in-Chief George Washington instructed his generals to ''leave no stone unturned, nor do not stick to expense''.
The wheel cypher was an ingenious and secure method to encode and decode messages. Thomas Jefferson devised the wheel cypher in the 1790s to write secret correspondence. Though messengers often hand-carried sensitive letters, codes became essential to mailed communications; postmasters frequently opened and read all letters passing through their command.
Ages 5 & up, measures six inches long and two and a half inches wide.
Not instant messaging, but cool, 14th Feb 2018
Reviewer: Roberta Cavano
Nice quality, easy movement of parts to align letters for coded messages to send to my grandson. I had given him a cypher wheel for Christmas, thinking he and his brothers would have fun, but never thinking he'd use it with me. When he sent me a coded letter, I rushed out to our local Fort Stanwix National Monument gift store, but they were out of stock. Luckily, your shipping was quick, and I was able to respond in time for a birthday note. Fun!