Questions about typefaces with thick, block-like serifs, or font-identification queries with similar typefaces. Examples of slab serif typefaces are Rockwell, Courier and Lubalin.

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.

Serif terminals may be either blunt and angular (Rockwell), or rounded (Courier). Slab serifs were invented in and most popular during the nineteenth century.

See more: https://en.wikipedia.org/wiki/Slab_serif