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
0289	Abyssinia	1895	1903	Monarchy	Menelik II	1	Gersh	1903
0290	Abyssinia	1925	1925	Ruler Change	Zauditu
0291	Ethiopian Empire (a)	1930	1931	Empire (a)	Haile Selassie I	50	Matonas	1931
0292	Ethiopian Empire & Federation	1944	1944	Empire (b)/Federation with Eritrea (from 1952)	Haile Selassie I	50	Cents	1944
0293	Ethiopian Prov'l Military Admin. Cncl	1977	1977	Provisional Military Administrative Council		5	Cents	1977
0294	Faeroe Islands	1941	1941	British Occupation - WWII		2	Ore	1941
0295	Falkland Islands	1974	1999	Ruler Change	Elizabeth II	1	Pound	1987
0296	Falkland Islands	1987	2000	British Dependent Territory	Elizabeth II	10	Pence	1998
0297	Fiji	1934	1936	Ruler Change	George V	1	Penny	1936
0298	Fiji	1936	1936	Ruler Change	Edward VIII	1	Penny	1936
0299	Fiji	1937	1952	Ruler Change	George VI	1	Florin	1943
0300	Fiji	1953	1968	Ruler Change	Elizabeth II	3	Pence	1963