Circulating coin

What these coins tell us a few, from the oldest to the most recent

1. 1750
   Escalin de Marie-Thérèse au lion du Brabant (1749-1750)Austrian Netherlands escalin 1750 - Marie Thérèse - Main
2. 1858
   Série de 2½ gulden de Guillaume III (1849-1874)Netherlands, 2½ gulden, William III, 1858
3. 1887
   Série de 2 lires d'Humbert Ier (1881-1899)Italy - 2 lire 1887 R - Umberto I
4. 1912
   Série de 50 centimes d'Albert Ier (1910-1914)50 centimes - Albert I in French
5. 1935
   Série de 20 francs de Léopold III (1934-1935)Belgium 20 francs 1935
6. 1950
   Série de 20 francs au type Mercure (1949-1955)Belgium 20 francs - Prince Charles - “Mercury” type in French 1950 - ↑↑
7. 1969
   First 50 new pence coin of Guernsey (1969)Guernsey 50 new pence 1969 - Ducal hat of Normandy
8. 1990
   First year of the Irish 1-pound coin (1990)Ireland 1 pound 1990 - Red Deer - Beautiful Proof

By decade

All coins 219 coins, from the oldest to the most recent

1902Mexico 5 centavos 1902 Cn Q 1903Denmark 10 øre - Christian IX 1903 VBP 1903Netherlands 10 Cents - Wilhelmina - 1903 1904Belgium 1 frank 1904 - LÉOPOLD II DER BELGEN 1904Netherlands 25 Cents - Wilhelmina - 1904 1906Germany - ½ mark - Wilhelm II - 1906-G 1906Netherlands 10 Cents - Wilhelmina 1906 1907Denmark 10 öre Frederick VIII 1907 ♥ VBP 1907Denmark 25 öre Frederick VIII 1907 ♥ VBP 1907Italy 1 lira - Vittorio Emanuelle III 1907 R 1907Netherlands 1 gulden 1907 1907Netherlands ½ gulden 1907 19092 francs - Léopold II - Vinçotte type in Dutch 190950 Cents 1909 Leopold II 1910Greece 1 drachma - George I - 1910 1910United Kingdom 1 Penny 1910 1911Belgium 2 francs - Albert King of the Belgians 1911 1911Greece 2 drachmas - George I - 1911 19121 franc - Albert I in Dutch 19121 franc 1912 Albert I - Albert King of the Belgians 191250 centimes - Albert I in Dutch 191250 centimes - Albert I in French 1912Mexico 10 centavos 1912 M 1912Netherlands ½ gulden - Queen Wilhelmina - 1912