However the tariff regimes of the three unions were quite different .
In 1850 , Austria proposed an amalgamation of the three customs unions in Germany , that of the Austrian Empire , the Zollverein and the Steuerverein ( the first two including territories beyond the German Confederation ) .
The tariff regimes of the three unions were quite different .
In 1850 , Austria proposed an amalgamation of the three customs unions in Germany , that of the Austrian Empire , the Zollverein and the Steuerverein ( the first two including territories beyond the German Confederation ) .