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Smelting of copper, 1683
 
Washing ore to extract gold, 1683
 
Assayer testing samples of gold and silver, 1683
 
Refining copper using the Hungarian process, 1683
 
Blast furnaces, 1683
 
Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683. Creator: Unknown
 
Checking the quality of saltpetre (nitre, potassium nitrate, or KN03), 1683. Creator: Unknown
 
Production of saltpetre (nitre, potassium nitrate, or KN03), 1683. Creator: Unknown
 
Laboratory for refining gold and silver, showing typical laboratory equipment, 1683. Creator: Unknown
 
Distillation of Nitric Acid, 1683. Creator: Unknown
 
Athanor or Slow Harry a self-feeding furnace maintaining a constant temperature, 1683. Creator: Unknown
 
Athanor or Slow Harry a self-feeding furnace maintaining a constant temperature, 1683. Creator: Unknown
 
Furnace for processes where protracted heat required, such as cementation, 1580. Creator: Unknown
 
Washing ore to extract gold, 1683. Creator: Unknown