No authentic Prussian 10 Mark gold piece was struck in gold-plated copper. Official imperial German 10 Mark coins were struck in .900 fine gold, and this composition suggests either a contemporary counterfeit, a later fantasy piece, or a collector replica. Pieces of this type circulated alongside genuine coins in some markets during and after World War I as gold coinage disappeared from circulation — hoarded, melted, or requisitioned by the state from 1914 onward.
No authentic Prussian 10 Mark gold piece was struck in gold-plated copper. Official imperial German 10 Mark coins were struck in .900 fine gold, and this composition suggests either a contemporary counterfeit, a later fantasy piece, or a collector replica. Pieces of this type circulated alongside genuine coins in some markets during and after World War I as gold coinage disappeared from circulation — hoarded, melted, or requisitioned by the state from 1914 onward.