Russia 1911-1916 lot of 6x silver 10 kopeks:
1911CnB (KM: Y-20a.2) NGC MS 66
1912CnB (KM: Y-20a.2) NGC MS 66
1913CnB (KM: Y-20a.2) NGC MS 66
1914CnB (KM: Y-20a.2) NGC MS 66
1915BC (KM: Y-20a.3) NGC MS 67
1916BC (KM: Y-20a.3) NGC MS 66+
Scarce high grade lot