300th anniversary of Russian Navy (Block of 6)

Peter the Great (1672-1725), Goto Predestinatsia.
K.A. Shilder (1786-1854), first all-metal submarine.
I.A.Amosov (1800-1878), screw steamship Archimedes.
I.G. Bubnov (1872-1919), submarine Bars.
B.M. Malinin (1889-1949), submarine Dekabrist.
A.I. Maslov (1894-1968), cruiser Kirov.