Serif Type Style Category: Clarendon Serifs (four examples). Typefaces patterned after the Clarendon type styles released in the mid 19th century and designed as bold faces to accompany text composition. Their stroke contrast is slight; serifs tend to be short to medium length. Later, many of these designs were released at larger point sizes as display types. Character stroke weight that is more obvious, and serifs that tend to be longer mark more current interpretations of this style.