| 41. | Private assay offices catered to the individual prospector, and to miners who stole gold out of the mines.
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| 42. | At 131 years, the Jacobs family assay office tradition was the oldest in the country when it closed.
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| 43. | The early smelter works and assay office are now mainly surface archaeological structures following their demolition and subsequent erosion.
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| 44. | The assay offices were regulated by sections 54 through 60, under the control of the Director of the Mint.
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| 45. | During its early years as an Assay Office, the Denver plant was the city's most substantial structure.
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| 46. | Organ also had two large mining furnaces for smelting ore and a geological assay office belonging to the mining company.
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| 47. | He later made scales for the Mexican Mint, Assay Office in New York, and the San Francisco Mint.
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| 48. | In 1865, he founded with John H . Boalt an assay office and consulting firm in Austin, Nevada.
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| 49. | The Assay Office was constructed along with a store and boarding house, a large mill was built in 1901.
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| 50. | Although assay offices were a common and important feature of mining infrastructure, the majority in Queensland have not survived.
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