Jeff Post grew up amid the lead mines of southwestern Wisconsin but for 30 years was curator of minerals and gems at the Smithsonian s Natural History Museum in Washington, D.C.
Jeff Post grew up amid the lead mines of southwestern Wisconsin but for 30 years was curator of minerals and gems at the Smithsonian s Natural History Museum in Washington, D.C.
Jeff Post grew up amid the lead mines of southwestern Wisconsin but for 30 years was curator of minerals and gems at the Smithsonian s Natural History Museum in Washington, D.C.
Jeff Post grew up amid the lead mines of southwestern Wisconsin but for 30 years was curator of minerals and gems at the Smithsonian s Natural History Museum in Washington, D.C.