"Practical Treatise on Milling and Milling Machines" by Brown & Sharpe, 1919

[Marco Bernardini]

On Wikisource there is an interesting "Practical Treatise on Milling and Milling Machines" by Brown & Sharpe, 1919:
https://en.wikisource.org/wiki/Practical_Treatise_on_Milling_and_Milling_Machines
I don't think basic things have changed a lot, since then.
The nice images are in the public domain, so you can even use them to decorate your shop.