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