Works of "Research Collection"
Place Collected: Iron Hill
Place Collected: Leadville District
Place Collected: Iron Hill
Place Collected: Iron Hill
Place Collected: Dolores River
Place Collected: Bodenmais
Place Collected: Etta Mine
Place Collected: Cora Claim
Place Collected: Black Hills
Place Collected: S of Keystone, Black Hills
Place Collected: Upper Bear Gulch