The five hallmarks

In order of appearence

  • The “Crown” is a certificate of authenticity of the material and craft
  • The “Moon” is the symbol for silver
  • The “925” means sterlingsilver. 925 parts of 1000 chemical parts in the metal are silver, 75 parts are copper
  • The “KL” is the signature of the silversmith as mastercraftman and a combination of his initials and a personal sign
  • The “JR” is the signature of the Josef Rainer Shakermanufaktur

These hallmarks are originally to be stamped onto silver wares like spoons, forks, knives, pots, bowls or plates. But for jewelry the alloy (925/000) and the signature is sufficient.