Curwen Sans is a monoline sans-serif dating from the early twentieth century. Though contemporary with Johnston's Underground and Gill Sans, and emerging from the same artistic milieu, Curwen Sans was created solely for in-house use at the Curwen Press in London so never achieved a wide audience or recognition.

The original face was cut only in a Medium weight, but the new digital family consists of four weights, each with an optically corrected Oblique, and all containing a full complement of Latin Extended-A characters.

K-Type Curwen Sans comprises three packages: • Basic Family (Regular, Oblique, Bold, and Bold Oblique) • Light (Light and Light Oblique) • Medium (Medium and Medium Oblique)