From the Syphus-Bunker Papers (MS-00169). The folder contains an original handwritten letter, a typed transcription of the same letter, the original envelope with the stamp removed, and a copy of the original letter.
The Dayton, Nevada Gold Discovery Sesquicentennial Commemorative Plate collection (1999) contains one china plate commemorating the sesquicentennial of the discovery of gold in Dayton, Nevada in 1849.
From the Clark County Economic Opportunity Board Records (MS-00016) -- Series I. Administrative. "Articles of Incorporation of Operation Opportunities - Clark County, Nevada."