The most powerful of our Enigma Series of Encoders. 5 double sided gears can provide 7.2 billion different possible keys. Each gear has 37 teeth containing the English alphabet, the digits 0 thru 9 and a decimal point (or period). The machine is relatively easy to use to encode your own highly encrypted secret messages! Send and receive secret messages to anyone who has a machine. We provide an encryption worksheet with your order that is also available electronically and can be useful in encoding and decoding messages. Hardwood construction with gears cut from ¼" thick wood. All letters and text are deeply laser engraved into the wood. The gears turn on alloy steel pins. Each gear is 4" in diameter. Base measures about 21" x 4.5". © Creative Crafthouse Made in USA Please watch video for more details on how to use the machine. We also are offering a series of decryption challenges with cash awards of $150. There will be a series of at least 3 challenges such as this, each one getting progressively more difficult. Note, we do not provide hints of any kind, nor do we provide wheel layouts for those wanting to try and program a solution without a machine. Entries can only be submitted by email. Contact info comes with the machine. The time stamp of emails will indicate winning entrant. Employees & family of Creative Crafthouse are not eligible. There is a similar prize offered on the Enigma IV machine. Only 1 win per customer on any enigma challenge (IV and V).