Others such as those of the Clarendon genre have a structure more like most other serif fonts, though with larger and more obvious serifs. Some such as Memphis and Rockwell have a geometric design with minimal variation in stroke width: they are sometimes described as sans-serif fonts with added serifs. Slab serifs form a large and varied genre. Slab serifs were introduced in the early nineteenth century. Serif terminals may be either blunt and angular ( Rockwell), or rounded ( Courier). In typography, a slab serif (also called mechanistic, square serif, antique or Egyptian) typeface is a type of serif typeface characterized by thick, block-like serifs. Some headings and the lower passage are in Didone type, but much body text is slab serif.
Slab-serif type on the heading of a Chartist poster, 1848.
For the 1956 typeface, see Egyptienne (typeface).
