One From Every Country
(or more correctly, one from every sub-entity!)
An example for each of the 1048 (of 1086) coinage types in my definitive 20th Century OFEC Collection
Note that they are in the same order as on the "20th Century OFEC Entities" page.
(I am in the process of adding images of each coin, please bear with me; in the meantime - get in touch!)

#	Sub-Entity Name	coins from	coins to	Political Designation	ruling authority	Den.	Unit	A.D. Year
1033	Grenada	1970	1970	Associated State	Elizabeth II	4	Dollars	1970
1034	Grenada	1985	1988	British Commonwealth Realm	Elizabeth II
1035	Guyana	1976	1980	2nd Coinage		5	Cents	1976
1036	Hungary	1990	1990	Second Republic		10	Forint	1990
1037	Isle of Man	1974	2000	Coinage Reform		1	Crown	1977
1038	Ivory Coast	1966	1966	Republic		10	Francs	1966
1039	Kuwait, State of	1976	1976	Ruler Change	Sabah III Al-Salim Al-Sabah	2	Dinars	1976
1040	Kuwait, State of	1981	2000	Ruler Change	Jaber III al-Ahmad al-Sabah
1041	Kyrgyzstan	1995	2000	Republic		10	Som	1995
1042	Laos	1971	1975	Ruler Change	Savang Vatthana
1043	Liechtenstein	1990	1990	Ruler Change	John Adam II	10	Franken	1990
1044	Luxembourg	2000	2000	Ruler Change	Henry