20 Para - Milan I / Aleksandar I / Petar I

Features

Issuer	Serbia
King	Milan l (1882-1889) Alexander l (1889-1903) Peter l (1903-1918)
Type	Standard Circulation Coin
Years	1883-1917
Value	20 Para (20 Nара) (0.20)
Currency	Dinar (1868-1918)
Composition	Copper-Nickel (75% Copper, 25% Nickel)
Weight	5.6 g
Diameter	22 mm
Thickness	1.8 mm
Shape	Round
Technique	Milled
Orientation	Medal Alignment ↑↑
Demonetized	Yes
Number	N# 3711
References	KM# 20,  Schon# 4

Obverse

Crowned heraldic eagle

Reverse

Denomination and date.
NOTE: Mintmark below 20

Script: Cyrillic 

Lettering: 
КРАЉЕВИНА СРБИЈА
1883
20
ПАРА

Translation: Kingdom of Serbia 

Edge

Smooth

Mint

Comments

A: Principality of Serbia (A semi-independent state under Ottomans)1815–1882
Title: Prince of Serbia
1) Miloš Obrenović I (1817-1839 and 1858-1860)
2) Miloš Obrenović II (13 June to 8 July 1839)
3) Mihailo Obrenović III (1839-1842 and 1860-1868)
4) Aleksandar Karađorđević (1842-1858)
5) Milan Obrenović IV (1868-1882)

B: Kingdom of Serbia (1882–1918)
Title: King of Serbia
1) Milan Obrenović IV or Milan I (1882-1889).
2) Alexander I or Aleksandar Obrenović (1889-1903)
3) Peter I or Petar I Karađorđević (1903–1918) 

C: Kingdom of Serbs, Croats and Slovenes, (Yugoslavia was its colloquial name) (1918-1929) then officially as
  Kingdom of Yugoslavia (1929-1945)
Title: King of Serbs, Croats and Slovenes and then King of Yugoslavia
1) Peter I or Petar I Karađorđević (1918–1921)
2) Aleksandar I Karađorđević (1921-1929-1934)
3) Peter II Karađorđević (1934-1945)