Argentiferous and auriferous copper matt. From Boston and Colorado Works

Made:
before 1889

Argentiferous and auriferous copper matt. From Boston and Colorado Works, Black Hawk, Colorado, presented by R. Pearce, 1875, with nos 1863-1870

Details

Category:
Metallurgy
Object Number:
1889-164/1862
type:
specimen
credit:
John Percy Collection