20th Century OFEC Entities

Number	circ/non-circ	Main Entity Name	Sub-Entity Name	Political Designation	from	to	coins from	coins to
0373	Circulating	Guatemala	Guatemala	Coinage Reform			1925	1949
0374	Circulating	Guatemala	Guatemala	Coinage Reform			1949	2000
0375	Circulating	Guernsey	Guernsey	British Crown Dependency	1901	1901	1868	1911
0376	Circulating	Guernsey	Guernsey	Ruler Change	1910	1936	1911	1949
0377	Circulating	Guernsey	Guernsey	Ruler Change	1952	eoc	1956	1966
0378	Circulating	Guernsey	Guernsey	Coinage Reform			1968	1984
0379	Circulating	Guernsey	Guernsey	Coinage Reform			1985	2000
0380	Circulating	Guinea	Guinea	Republic	1958	1984	1959	1959
0381	Circulating	Guinea	Guinea	Coinage Reform			1962	1969
0382	Circulating	Guinea	Guinea	Coinage Reform			1971	1971
0383	Circulating	Guinea	Guinea	Second Republic	1984	eoc	1985	1994
0384	Circulating	Guinea-Bissau	Guinea, Portuguese	Portuguese Republic Colony	1910	1951	1933	1946

Notes to the above table:

Column A numbers the 1086 Coin Series from my definitive list for the 20th Century. The 1000 Circulating series are listed first, followed by the Non-Circulating types. Note that Non-Circulating types are only included where the Coin Issuing Entity did not issue Circulating coinage.

Column C shows the main 273 entities. (Please note that I use the word entity rather than country as monetary unions and dependencies that are self autonomous, and officially issue their own coinage are included, not just sovereign states.) This is a good starting point for an OFEC collection.

Column D includes all of the sub-entities of the Main Entities. By sub-entity I mean the 1086 different coinage types or series produced by the main entities.

These include all coinage reforms, where no political change has taken place. There are several reasons for this. For instance an entity may simply decide to change the overall design of their coins. Usually however, there is an underlying reason for such a change. There may have been a devaluation of the currency, or they may for example have decimalised such as the UK did in 1971.

Column E shows the Political Designation of the Sub-Entity, or it shows the reason for the change of coinage such as a change of ruler or coinage re-design.

The dates given in the remaining columns also need explanation. The first set of dates reflect the period during which the Sub-Entity existed, or at least an approximation as the dates are not always cut and dried. Where no dates appear it is usually because the Entity in question is a change of coinage only and therefore the previous Political Entity would still be in effect. The second set of dates are the date range of the coins issued for that Sub-Entity.