Made in the 1930s to celebrate the ingenuity and superiority of prehistoric German ancestors. Subsequently acquired by the Detroit Institute of Arts and, in 2000, by us. With full details and certification. 29 1/2" width comprising a cross beam suspended in forked supports, weighted by a stone and bearing down on a cord operated drill acting on a "stone" axe head, captive in four pegs. Charming "Flintstone" like character and to our knowledge, the only such example.