Stamping

STAMPING

  

For this technique the forger needs to create special stamping devices known as dies.

Some ways to create a die are

a.      Cut on steel billet as did the cutters on mints;

   

b.     Copy from the original coin on a workpiece by means of pantographs;

c.      To get a print-form from the original coin;

d.     To get a negative galvanic copy from the original coin;

e.      Electrochemical treatment of metal.

The stamping process can be made by sophisticated equipment at a manufacture, by more simple machines or by the simplest hummer hit at home: 

Modern advances in the development of new types of industrial equipment have led in recent years to such effects as a sharp increase in the quality of manufacturing fake Russian coins. Now forgery intends to deceive collectors mainly by minting (all Russian coins were only minted). Forged stamps for stamping and mintage equipment made ​​at the highest technical level because now as counterfeiters are not acting as single artisans or handicraft workshops. They are the workers and people of engineering and technical personnel of industrial companies with access to the latest technology and using it illegally only for profit.

  

Chemistries for fake coins

Some chemistries used in a silver fake coins
Sn-Pb
Sn-Sb-Pb
Sn-Sb-Cu
Sn-Pb-Bi
Cu-Zn-Ni

Some chemistries used in a silver fake coins with silver (Ag) plated:
Cu
Cu-Zn
Cu-Zn-Cd
Cu-Zn-Ni
Cu-Zn-Sn
Cu-Zn-Cr
Cu-Ni
Cu-Cr
Cu-Cr-Zn-Sb
Cu-Cr-Zn-Fe
Pb-Bi-Sn

The chemistry used in a silver fake coins with Chrome plated:
Cu-Sn-Sb


The chemistry used in a silver fake coins with Cadmium plated:
Cu-Ni