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