Related Books
Language: en
Pages: 134
Pages: 134
Type: BOOK - Published: 1984 - Publisher: Sterling Publishing (NY)
Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how
Language: en
Pages: 68
Pages: 68
Type: BOOK - Published: 1970 - Publisher: Scholastic
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering
Language: en
Pages: 64
Pages: 64
Type: BOOK - Published: 1966 - Publisher:
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering
Language: en
Pages: 0
Pages: 0
Type: BOOK - Published: 2002-07-11 - Publisher: Running Press
Includes Morse Code transmitter, receiver, and linking wire; Jefferson wheel; and sempahore flags. This innovative book and kit for ages 6 to 12 features everyt
Language: en
Pages: 48
Pages: 48
Type: BOOK - Published: 1997 - Publisher:
Dozens of codes and hidden messages are presented as riddles, poems, and other fun-filled expressions.
