Miner with Hammer
      
      
       
      Postcard size 
      Push and pull mechanism 
       
      A miner in the Middle Ages at work. He knocks with his hammer on
      the chisel. 
       
      The model is inspired by a wood carving in Georg Agricola 's Book of
      Mining in Middle Ages (first edition: VDI-Verlag, Berlin 1928, S. 183). 
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
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