Vereinigte Deutsch Metallwerke Ag

Manfred B Rockel

Ulrich Heubner

Gunther Rudolph

Bruno Prinz

Hugo Zoebe

A copper-base alloy which consists essentially of 1 to 7% tin and 1 to 7% aluminum and contains aluminum and tin in a total not in excess of 10%, balance copper and inevitable impurities which are due to the manufacturer, is disclosed. It is useful as a coinage material of gold color.

Gold-colored coin material

An alloy useful as a coinage alloy, especially as a cladding for a coin comprising a core and a cladding is disclosed. The alloy consists essentially of 4 to 6% nickel, 4 to 6% aluminum, balance copper and inevitable impurities which are due to the manufacture. Also disclosed are coins made therefrom having a gold-like color.

Growing community of inventors

Friedrichsdorf, Germany

Manfred B Rockel