encodingcard.com

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Your encoding card will be printed on a standard sized plastic ID badge and fit wherever you carry credit cards so you‘ll always have a quick reference ready to go when puzzling. It has a topcoat over the printing for high durability — the card in my wallet was printed in 2018.

Encoding Card

Buy on Etsy$10

The front and back are packed with all of the encodings commonly seen in puzzle events. Alphabet (ROT-13 and Reverse), ASCII, Binary, Braille, Color Wheel (Additive, Pigment Mixing, Subtractive), Electronic Color Code (Resistor), Flag Semaphore, International Morse Code, NATO Phonetic Alphabet, Naval Signal Flags, Phone Spell, Pigpen Cipher, Roman Numerals, Ternary.

Braille Card

A plastic card standing in front of the wallet. It is titled "Braille" with a grid of ten columns and four rows. The first three rows have the letters A-Z and their Braille dots. The fourth row has numbers and their Braille dots.

Buy on Etsy$10

The card features Braille letters and numbers in a big, easy to read table. The dots are not tactile; it is a visual reference only.

Morse Code Card

A plastic card standing in front of the wallet. It is titled "Morse Code" with a grid of four columns and thirteen rows. The first two columns have the letters A-Z and their Morse code. The third column has numbers and their Morse code. The fourth column has special symbols and their Morse code.

A plastic card entitled "Morse Code" in front of a wallet. It has a table of common CW abbreviations, a small table of prosigns, and a reverse lookup tree for Morse code letters.

Buy on Etsy$10

The front features Morse code letter, number, and symbols in a big, easy to read table. The back has a listing of common CW abbreviations.

NATO Phonetic Alphabet Card

Buy on Etsy$10

The card features the NATO code words for each letter and FAA pronunciations for each number in a big, easy to read table. Great for spelling over the phone without feeling silly about your improvised word choices.

Naval Signal Flags Card

A plastic card standing in front of the wallet. It is titled "Naval Flags" with a grid of nine columns and four rows. The first three rows have the letters A-Z and their naval signal flag. The fourth row has numbers and their naval signal flag.

Buy on Etsy$10

The card features naval signal flags in a big, easy to read table. It shows International Code of Signals flags for letters and NATO flags for numbers.

Substitution Cipher Card

A plastic card standing in front of the wallet. It is titled "Substitution Cipher" with two grids of the letters A-Z. The left grid has colored shapes next to each letter. The right grid has numbers next to each letter.

A plastic card standing in front of the wallet. It is titled "Substitution Cipher" with two grids of the letters A-Z. The left grid has letters next to each letter. The right grid has outlined shapes next to each letter.

Buy on Etsy$15

A pair of plastic, wallet-sized cards with two matching substitution ciphers. Give one to a friend and send secret messages back and forth. Use shapes, numbers, or letters as your cipher. Every pair is unique!

Can you customize the card design for me? What about a bulk discount?

Maybe! Contact us to talk about what customization and quantity you are interested in.