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
1057	Saint Helena & Dep - Ascension	1981	2000	Saint Helena Dependency	Elizabeth II	50	Pence	1984
1058	Saint Helena & Dep - Saint Helena	1978	1978	Saint Helena Dependency	Elizabeth II	1	Crown	1978
1059	Saint Helena & Dep - Saint Helena	1973	2000	Saint Helena Dependency	Elizabeth II	50	Pence	1984
1060	Saint Helena & Dep - Tristan Da Cunha	1978	1978	Saint Helena Dependency	Elizabeth II	1	Crown	1978
1061	Saint Helena & Dep - Tristan Da Cunha	1977	2000	Saint Helena Dependency	Elizabeth II	25	Pence	1980
1062	Saint Christopher-Nevis-Anguilla	1970	1970	Associated State	Elizabeth II	4	Dollars	1970
1063	Saint Kitts and Nevis	1982	1982	Associated State	Elizabeth II	20	Dollars	1982
1064	Saint Kitts and Nevis	1983	1988	British Commonwealth Realm	Elizabeth II	20	Dollars	1983
1065	Saint Lucia	1970	1970	Associated State	Elizabeth II	4	Dollars	1970
1066	Saint Lucia	1982	1988	British Commonwealth Realm	Elizabeth II	5	Dollars	1986
1067	Saint Vincent and the Grenadines	1970	1970	Associated State	Elizabeth II	4	Dollars	1970
1068	Saint Vincent and the Grenadines	1985	1988	British Commonwealth Realm	Elizabeth II