speedball.png
*Speedball Text Book*, Ross F. George, 1957


m-stroke.png
from *Le trait*, Gerrit Nordzij,  Ypsilon - 2010, 

din-stroke.png
Extract of the current DIN specifaction - bought at DIN institute.

hershey2.png
Hershey font family preview with Inkscape extension.

lessons-learned-from-metafont.png
*Lessons Learned from Metafont*, Donald E. Knuth - Visible Language, 1985

variex-combo.png
Emigre's Variex specimen