Pattern book for scribes

A medieval scribal pattern book by Gregorius Bock, ca. 1510-1517 from Swabia, Germany.
A medieval scribal pattern book by Gregorius Bock, ca. 1510-1517 from Swabia, Germany.P

I found this scribal pattern book fascinating. Link to full online catalog of the book at Yale's Beinecke Rare Book and Manuscript Library.

via The Public Domain Review