Japan 
EmperorMeiji (1867-1912) 
CalendarJapanese - Meiji era
Value50 Sen (0.5 JPY)
CurrencyYen (1871-date)
CompositionSilver (.800)
Weight13.48 g
Diameter30.5 mm
ShapeRound
OrientationCoin alignment ↑↓
DemonetizedYes
ReferencesY# 25, JNDA# 1-14
Obverse
Dragon within beaded circle, legends above, written value below

Lettering: 
年七十三治明 · 本 日 大 ·
· 50 SEN ·

Translation: 
Great Japan · Year 37 of Meiji
· 50 Sen ·

Reverse
Chrysanthemum Flower (Coat of Arms & Emperor's Royal Seal) and the branches of Paulownia Flower (Heart-shaped leaf) and Chrysanthemum Flower on either side of the value

Lettering: 
五
十
銭

Translation: 
50
Sen

Edge
Reeded