Type height

height-to-paper; type height. The standard height of types, blocks or any letterpress printing material. This height is for the United Kingdom and most American countries 0.918" (23,3167 mm). In other countries height-to-paper is: France 23.56 mm, Germany 23.56 mm (Old German 24.90 mm obs., Leipsic 24.82 mm obs.), Netherlands 24,85 mm, old Flemish 24.78 mm), Austria ≈ 23.56 mm, Russia 25.10 mm and bookbinders type high 6.5 mm.
f: hauteur en papier; hauteur du caractère
d: Schrifthöhe
n: letterhoogte