Typesetting of the body text is the work of the printer and their typesetter. This allows the typesetter to distinguish sentence endings from abbreviations and to typeset them differently. A typesetter then appearance for the dialogue, signs, translator notes, etc. A venture was made into photocomposition with the ATF Typesetter. The Unix typesetter program Troff uses two spaces to mark the end of a sentence. Also arrested were editorial assistant Michael Schwab and Adolph Fischer, a typesetter. Proofs are then returned to the typesetter for correction. After an apprenticeship as typesetter, he studied graphic design in Munich. A former typesetter for the "Patriot," Julius C. Hubbard, became its editor. The typesetter typed a line of text on a Fairchild keyboard that had no display. It was dubbed "troff", for "typesetter roff". Around 1500, a local typesetter developed the "Schwabacher" font. According to one story, a careless typesetter simply made an error. Berkman became a typesetter for Most's newspaper "Freiheit". This allows the typesetter to make changes and corrections without rekeying.