Barbre, Thos. J.2019-12-092022-02-032019-12-092022-02-03https://hdl.handle.net/11124/173745Donor: Colorado Mining Association.Photographed by Thos. J. Barbre.Four men standing at a map table in the engineering office, London Mines and Milling Company.Caption reads: "L. B. Riley, Geol & Chief Engineer, T. J. Jerrson, Assay, R. C. Route, Asst Geol., J P. Abrinner (?), Mine Engineer. Scene, London M & M Co Engineering Office. No. 1257."10 x 7 1/2 inchesblack-and-white photographsCopyright retained by Colorado Mining Association.Underground mining -- ColoradoViews -- InteriorLondon Mines and Milling CompanyMiners -- Colorado -- Park CountyMining engineers -- Colorado -- Park CountyGeoloigsts -- Colorado -- Park CountyStillImage