The major components of German Silver are :

 $\mathrm{Cu}, \mathrm{Zn}$ and $\mathrm{Ag}$

Ge, $\mathrm{Cu}$ and $\mathrm{Ag}$

$\mathrm{Zn}, \mathrm{Ni}$ and $\mathrm{Ag}$

$\mathrm{Cu}, \mathrm{Zn}$ and $\mathrm{Ni}$