This manual steel mill processes all types of grain except maize. It has the great advantage that you can also grind oil seeds with it. It also grinds poppy seeds, but unfortunately not as well as a real poppy seed mill.
Its disadvantage is that it cannot grind as finely as stone mills, but it is perfectly adequate for baking bread.
And with the appropriate attachments, you can turn it into a flaker or a nut grater.