The ornamental design for a typeface, as shown and described.
1. Typeface
1.1 : Front
1.2 : Front
1.3 : Front
Fig. 1.1 is a face view of a typeface showing my new design; fig. 1.2 is a face view showing the letters of the typeface in use; fig. 1.3 is an enlarged face view of a represented sample of characters of fig. 1.1.