The Card of Codes 2.0

• Each card is engraved with three unique substitution ciphers for you to encipher (and then decipher) secret messages, create secure passcodes, etc.
• Cipher XXXXX (Letters only) is the simplest unique monoalphabetic substitution cipher, with the 26 English letters replaced by each other
• Cipher XXXXXn (Letters and Numbers) is a more advanced substitution cipher, with the 26 English letters and numbers (1, 2, 3, ... , 9, 0) replaced by each other
• Cipher XXXXX$ (Letters, Numbers and Special Characters) is the most advanced substitution cipher on your card, with the 26 English letters and numbers replaced by each other as well as special characters
• All special characters in your Cipher XXXXX$ are also ASCII-standard characters, so this cipher is particularly useful for creating strong passwords
• XXXXX is the base of your ciphers' names and is unique
• Each card has a unique 15-character serial number, which can be used for requesting the digital backup graphic of your substitution cipher section here for FREE
• This substitutional cipher section is unique on each card. Every card is different, and no two cards are the same.
• The front side is also laser-engraved with an extended table of International Morse Code, a redesigned, clean and simple table for encoding and decoding Vigenère Cipher, and the classic Atbash Cipher and Caesar Cipher
• The back side is laser-engraved with the ASCII table
• Made of highly durable and corrosion resistant SUS304 stainless steel
• Laser-engraved codes will never fade nor wear off
• With a special scratch-resistant, dirt-repellent and anti-fingerprint coating applied
• Thickness is enhanced to 0.6 mm to ensure the card is highly rigid and durable
• Same size as a credit card (85.5 mm x 54 mm)
• 683% funded on Kickstarter: https://www.kickstarter.com/projects/minuteobjects/the-card-of-codes-2
• All images are for reference only. The photos may be slightly different from the actual item in terms of colour due to the lighting during photo shooting or the monitor's display.
• The card sleeves shown in the product images are not included

• Dimensions: 85.5 mm x 54 mm (with rounded corners)
• Thickness: 0.6 mm ± 0.03 mm
• Material: SUS304 stainless steel
• Colour: black
• Coating: scratch-resistant, dirt-repellent and anti-fingerprint coating
• Colour of the engraved information: silvery
• Place of origin: Taiwan

You may request the backup card record of your Card of Codes 2.0 (the substitution cipher section) with its serial number at this website: https://www.minuteobjects.com/request-card-record