Hallmark, Approved from May 7, 1958

Hallmarks

Metal: Silver, Gold, Platinum, Palladium
Assay: 583
Year: 1958
Shape: Rectangle
Description: The hallmark - a verification mark, round, with the emblem of a hammer and sickle against a five-pointed star, with an assay office cipher, is intended for marking dental prosthetic discs made of precious metals, as well as gold, silver, platinum, and palladium items in combination with a square-shaped assay mark with rounded corners. They are intended for marking detachable and easily removable secondary and additional parts of gold, silver, platinum, and palladium items with one of the following established finenesses: 375, 500, 583, 750, 958; 750, 800, 875, 916, 960, 950, 500 and 850. Shape: Rectangle Metal: Gold, Palladium, Platinum, Silver Fineness: 375, 500, 583, 750, 958; 750, 800, 875, 916, 960, 950, 500 and 850