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col·o·phon /ˈkɒləˌfɒn, -fən/
1. a publisher’s or printer’s distinctive emblem, used as an identifying device on its books and other works.
2. an inscription at the end of a book or manuscript, used esp. in the 15th and 16th centuries, giving the title or subject of the work, its author, the name of the printer or publisher, and the date and place of publication.
[Origin: 1615-25; < L < Gk kolophn summit, finishing touch]

Related forms
col·o·phon·ic, adjective

Source: Dictionary.com.