This font is a facsimile of a substitution cipher from The Shadow #10, "Chain of Death." Letters are replaced by blocky symbols, which consist of pairs of rectangular shapes separated by a space. To encrypt a message, the symbols are connected together by their outer right and left edges. This gives the appearance of a much greater set of symbols than there actually are, and the spaces will confuse potential codebreakers. There are no numerals or punctuation. I included square brackets ("[" and "]") for two special symbols that are frequently used to begin and end sencryptions (you can type messages [like this]).