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Photograph of the Mount Diablo mines four chute ore loader, Candelaria (Nev.), 1900-1925
From the Syphus-Bunker Papers (MS-00169). The folder contains an original handwritten letter, an envelope, a typed transcription of the same letter, and a copy of original letter attached.
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Handwritten note: three days of pressure readings from a well in the Huntridge subdivision