Constantine I n Emperor - 1 Rouble 1825. Was made during interregnum in November - December 1825 - the most rare and expensive monument of n coinage and generally rare world coins. Made of silver 925. 22 grams. 36mm diameter...
Nicholas I n Emperor - 1 Rouble 1859. Commemorated to the opening of the Alexander II monument. Saint Petersburg mint. Made of silver 925. 22 grams. 36mm diameter...