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
0073	Bermuda	1970	1985	Coinage Reform		10	Cents	1971
0074	Bermuda	1986	2000	British Dependent Territory	Elizabeth II	25	Cents	1986
0075	Bhutan	1835	1910	Third Period - Diarchy		1/2	rupee	1835
0076	Bhutan	1910	1927	Monarchy	Ugyen	1/2	rupee	1910
0077	Bhutan	1928	1951	Ruler Change	Jigme	1/2	Rupee	1928
0078	Bhutan	1966	1966	Ruler Change	Jigme Dorji	3	Rupees	1966
0079	Bhutan	1974	1975	Ruler Change	Jigme Singye	5	Chetrums	1975
0080	Bhutan	1979	2000	Coinage Reform		1	Ngultrum	1979
0081	Biafra	1969	1969	Republic		1	Shiling	1969
0082	Bohemia and Moravia	1940	1944	German Protectorate		20	Haleru	1941
0083	Bolivia	1872	1951	Republic		5	Bolivianos	1951
0084	Bolivia	1965	1980	Coinage Reform		1	Peso Bolivianos	1968