 | William Nicholson - 1808 - 900 σελίδες
...precious stones, break off pieces by Accident : in this case they join them so that it cannot easily be seen, with gum mastic, the stone being previously...stone as a ground, to produce the appearance of an onvi. Mastic is likewise used to cement false backs, or doublets, to stones, to alter their Iuic»... | |
 | Andrew Ure - 1821 - 436 σελίδες
...precious stones, break oft' pieces by accident; in this case they join them so that it cannot easily be seen, with gum mastic, the stone being previously...false backs or doublets to stones, to alter their hue. The jewellers in Turkey, who are generally Armenians, ornament watch-cases and other trinkets with... | |
 | Andrew Ure - 1821 - 436 σελίδες
...precious stones, break off pieces by accident; in this case they join them so tliat it cannot easily be seen, with gum mastic, the stone being previously...of an onyx. Mastic is likewise used to cement false bucks or doublets to stones, to alter their hue. The jewellers in Turkey, who are generally Armenians,... | |
 | Andrew Ure - 1827 - 904 σελίδες
...the aLone being previously made hot enough to siselt it. By the same medium cameos of white CnanreZ or coloured glass, are often joined to a real stone...used to cement false backs or doublets to stones, 10 alter their hue. The jewellers in Turkey, who arc generally Armenians, ornament watch.caies and... | |
 | Andrew Ure - 1828 - 872 σελίδες
...precious stones, break off pieces by accident ; in this case they join them so that it cannot easily be seen, with gum mastic, the stone being previously...likewise used to cement false backs or doublets to stone«, to alter their hue. The jewellers in Turkey, who are generally ncnians, ornament watch-cases... | |
 | Andrew Ure - 1831 - 980 σελίδες
...precious stones, break off pieces by accident: in this case they join them so that it cannot easily be seen, with gum mastic, the stone being previously...coloured glass, are often joined to a real stone as aground, to produce the appearance of an onyx. Mastic is likewise used to cement false backs or doublets... | |
 | Luke Hebert - 1835 - 816 σελίδες
...precious stones, by accident break off pieces ; m this case they join them, so that it cannot easily be seen, with gum mastic, the stone being previously...false backs or doublets to stones, to alter their hue. The jewellers in Turkey, who are generally Armenians, ornament watch-cases and other trinkets with... | |
 | Luke Hebert - 1836 - 814 σελίδες
...precious stones, by accident break off pieces ; m this case they join them, so that it cannot easily be seen, with gum mastic, the stone being previously...as a ground, to produce the appearance of an onyx. Mustie is likewise used to cement false backe or doublets to stones, to alter their hue. The jewellers... | |
 | 1838 - 348 σελίδες
...precious stones, break off pieces by accident; in this case they join them so that it cannot easily be seen, with gum mastic, the stone being previously...melt it. By the same medium cameos of white enamel or colored glass are often joined to a real stone as a ground, to produce the appearance of an onyx. Mastic... | |
 | Andrew Ure - 1844 - 756 σελίδες
...mastic alone is sometimes used by jewellers to cement by heat cameos of white enamel or colored glass to a real stone, as a ground to produce the appearance...false backs or doublets to stones, to alter their hue. Melted brimstone, either alone, or mixed with rosin and brick dust, forms a tolerably good and very... | |
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It sometimes happens, that jewellers, in letting precious stones, break oft' pieces by accident; in this case they join them so that it cannot easily be seen, with gum mastic, the stone being previously made hot enough to melt it. By the same medium cameos... 
