Works of "Research Collection"
Place Collected: California Mine
Place Collected: Fort Point
Place Collected: Tin Queen Mine
Place Collected: Terlingua
Place Collected: Blacksburg
Place Collected: Minasragra
Place Collected: Guadaloupe Y Caloo
Place Collected: Broken Hill
Place Collected: Shattuck Mine (Shattuck-Denn Mine)
Place Collected: Shattuck Mine (Shattuck-Denn Mine)
Place Collected: E Tintic Dist.