I'm looking for high-resolution scans from pages of Arrighi's La Operina, which is a classic manual for calligraphy and for the 'chancery italic' approach to pre-printing-press typography. I'm aware of an on line resource of "the" work, but the resolution is too low.
The work doesn't have to be authentic and I'll consider examples of modern interpretations. I have a copy of Three Classics of Italian Calligraphy but it doesn't show enough detail.
Any help appreciated.