PTAH HEAD Limestone and trace of copper alloy. H. 2.7 cm Egypt, Late Period, 712-332 BC Provenance Former Friedhelm Stier collection, acquired 1960-1970 Friedhelm Stier was a Limburg dentist and a great connoisseur of Etruscan art. Hermann Historica Auktionen, Munich, 11/10/2015, lot 3509 Galerie Ostracon, Switzerland, 11/07/2018 An Egyptian limestone head of Ptah statuette. Late Period, 664-332 B.C.