Jewelry caliper 80mm, silver with ruby ​​insert, 2000

This caliper is designed to measure jewelry made of gold, silver and other valuable materials

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Jewelry caliper 80mm, silver and ruby ​​insert, 2000
The exposition of the "Museum of Industrial Instruments" MICROTECH presents ancient measuring instruments, most of which are 80 ... 170 years old.
Among the old-fashioned meter, it looks quite harmonious with a small, with a silver patina, vernier caliper in the range 0 ... 80 mm and 0 ... 3 inches with small measuring jaws of 15 mm.
This caliper is designed to measure jewelry made of gold, silver and other valuable materials:
A common special feature of valuable materials is their low hardness, which we are well aware of by mechanical damage to jewelry;
The use of traditional steel measuring instruments in the manufacture and sale of jewelry is unacceptable, since a steel meter easily damages the surface of jewelry;
To measure jewelry made of precious metals, jewelers make so-called jewelry calipers, which are decorated with precious stones (in our jewelry calipers, a ruby ​​is attached to the measuring bar.
It should be noted that the needs of jewelers often materialize in the form of a special tool for measuring sizes and calculating the carats of diamonds and other precious stones.