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

1930Ireland 2 shillings (florin) 1930 1930Ireland ½ crown 1930 193420 francs - Albert I in Dutch 193420-franc Albert I coin in French 1934Ireland 3 pence 1934 - Irish Free State - Hare 1935Belgium 20 francs 1935 1935Mexico 20 centavos 1935 M 1935Netherlands 10 Cents - Queen Wilhelmina - 1935 1936Italy - 20 Lire 1936 R - Vittorio Emanuele III 1937Germany 2 reichsmark - Third Reich 1937-E 1937Germany 5 reichsmark - Third Reich 1937-A 1938Netherlands 10 Cents - Queen Wilhelmina - 1938 1938Netherlands 2½ gulden - Queen Wilhelmina - 1938 1938United Kingdom ½ Penny 1938 193950 francs 1939 Léopold III BELGIQUE:BELGIE 1939Canada 10 cents - George VI 1939 1939Ireland 1/2 crown 1939 1939Ireland 2 shillings (florin) 1939 1939Netherlands 1 Gulden - Queen Wilhelmina - 1939 1939Netherlands 10 Cents - Queen Wilhelmina - 1939 1941Ireland 1 Penny 1941 - Hen and Chicks 1941Ireland 1 farthing 1941 - Snipe 1941Ireland 1 shilling 1941 1941Netherlands 10 Cents - Queen Wilhelmina - 1941