This section is from the book "The Home Cyclopedia Of General Information", by Charles Morris. Also available from Amazon: Home Cyclopedia of Necessary Knowledge.
[AS.] An alloy of two parts of copper and one of zinc. Prince Rupert's metal, used in jewelry, has from 75 to 80 per cent, of copper. The alloy used in Dutch metal has 85 per cent. of copper. It is much used for machinery, telescopes, buttons, screws, etc.
 
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