Christofhammer was formerly part of the German Empire. In the German Empire, the place was called Christophhammer.
The place is now called Kryštofovy Hamry and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Christofhammer | Austro-Hungary | Preßnitz | before the Treaty of Saint-Germain |
| Chrištofovy Hamry | Austro-Hungary | Preßnitz | before the Treaty of Saint-Germain |
| Kryštofovy Hamry | Czechoslovakia | Přísečnice | after the Treaty of Saint-Germain |
| Christophhammer | Czechoslovakia | Přísečnice | after the Treaty of Saint-Germain |
| Christophhammer | German Empire | Preßnitz | 1938 |
| Kryštofovy Hamry | Czechoslovakia | Jáchymov | 1945 |
| Kryštofovy Hamry | Czechoslovakia | Chomutov | 1992 |
| Kryštofovy Hamry | Czech Republic | Chomutov | 1993 |