1/2 Kopek 1915

1 Kopek 1916

2 Kopek 1915

3 Kopek 1916

Year 1914 was the last year with mintmarks on imperial Russian coins. There was no real need for mintmarks in Russia, since the only mint was in Petrograd (Untill 1914 called Sankt Peterburg). Coins have similar designs as before. There are 1/4 and 5 Kopeks of this series too, but they tend to be quite rare.