Propozycja.

Saddle quern
The saddle quern is produced by rocking or rolling the handstone using parallel motions (i.e., pushing and pulling the handstone), which forms a shape looking like a saddle. These are the most ancient and widely used type of quern-stone and were superseded around the 5th to the 4th century BC by the more efficient rotary quern.[17] The handstones for saddle querns are generally either roughly cylindrical (not unlike a rolling pin) and used with both hands, or rough hemispheres and used with one hand. This provides a crushing motion, not a grinding action and is more suitable for crushing malted grain. It is not easy to produce flour from a saddle quern with unmalted grain. The handstone is also referred to as a 'rubber' or 'mouler'.[18]

https://en.wikipedia.org/wiki/Quern-stone
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https://commons.wikimedia.org/wiki/File:Saddle_Quern_and_Rub...
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