Attractive slider

Russia - Empire 
EmperorNikolai II (1894-1917)
1916
CompositionSilver (.500)
Weight2.7 g
Diameter19.7 mm
Thickness1.3 mm
ShapeRound
OrientationMedal alignment ↑↑
DemonetizedYes
ReferencesY# 21a.1, Y# 21a.3
Obverse
Crowned double-headed imperial eagle, ribbons on crown.
Ruler: Nikolai II (1894-1917).

Lettering: В С

Translation: V S

Reverse
Crown above value and date within wreath.

Lettering: 
* 15 *
КОПѢЕКЪ
1914

Translation: 15 Kopecks

Edge
Milled

The initials of mintmaster: ВС - Victor Smirnov.
Petrograd - the name of the city of St. Petersburg in 1914-1924.