Stone Quern used mainly in ancient time to hand-grinding grain, seed into flour aka Jata, Atta Chakki, Saddle Quern, Muller; used in Hindu weddings as Jate Pujan [Translation: worship of Flour mill] A trough quern and rubbing stone, lying in a midden or rubbish pit, used for grinding corn in the Neolithic and Bronze ages, approx 2500-800 BCE ...