Settings, Keys, Hats, and Head Scratching: The HEADLINE PUZZLE

Book description

An antique newsletter containing puzzles and solving tips.

Product information

  • Title: Settings, Keys, Hats, and Head Scratching: The HEADLINE PUZZLE
  • Author(s): Paul Derthick
  • Release date: October 2000
  • Publisher(s): Center for Cryptologic History, NSA
  • ISBN: None