"This Dover publication presents 136 full-page plates with over 1200 different monographs and ciphers. The plan of the book virtually exhausts all possibilities of two and three letter combinations, containing over 900 different monograms and ciphers. In addition there are over 200 designs of two letters with the ampersand and 'Co.'; number ciphers; designs involving sacred devices and names; and labels" -- back of book