Thursday, June 13, 2013
A Gallatin Cipher
Jefferson appointed him [Albert Gallatin] Secretary of the Treasury... . His communications from Europe on public affairs at that time were mostly written in cipher, composed of numbers, of which (copied from one of them in the State Department at Washington) a facsimile is here given from a letter dated at London June 13, 1814. Each number represents a word or sentence perfectly intelligible to a person with a key.