Hourglass Shaped Millstones
Rotary Millstones Up To Meter High Fig 2B Typically Consisting Of An Hourglass Shaped Double Cone Upper Stone Catillus Resting On The Conical Lower Stone Meta Moritz 1958 The Wheat Was Crushed To Powder By The Friction Between The Meta And Catillus Being This Latter Turned By Means Of A Bar Pushed By Slaves Or A Donkey Mola