To apply light blows to the gold thread, or incrust it with a flat-based punch, a small hammer is used, very light and with a wide mouth, similar to those used by engravers who use a burin. |
It's just the same principle as those lime springs that incrust things with lime. |
Take its red robe boldly from it, and weight it with gold and incrust it with jewels. |
The minute particles can incrust themselves into the cellulose fibers of paper, especially in excessive relative humidity conditions. |