Barbre, Thos. J.2019-11-202022-02-032019-11-202022-02-03https://hdl.handle.net/11124/173436Donor: Colorado Mining AssociationPhotographed by Thos. J. Barbre.Hamm Mining & Milling company office, built of brick with decorative wrought iron hand rails, on a dirt lot.Caption reads: "Hamm Mng & Mlg, Lake Co."10 x 8 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Mineral processing -- ColoradoHamm Mining and Milling CompanyMineral industries -- Colorado -- LeadvilleStillImage