The present currencies for Ethiopia are a bit of a mess. We currently have:
Thaler (1893-1936)
1 Thaler = 16 Gersh
Birr (1894-1931)
1 Birr = 20 Gersh = 40 Bessa; Werk ~ 4 Birr
Birr (decimalized, 1931-1936)
100 Metonnyas = 1 Birr
Ethiopian Dollar (1945-1976)
1 Dollar = 100 Cents
Birr (1976-date)
1 Birr = 100 Senteems
Some of this is complete nonsense, especially the fictional use of cents for the subdivisions of the “dollar”. The first currency is only used for notes, the second and third only for coins, so a merger is clearly required. What we actually need is the following:
Birr (1894-1931, Thaler in French)
1 Birr = 20 Gersh (1894-1903), 1 Birr = 16 Gersh (1903-1931); 1 Werk ≈ 4 Birr
Birr (Decimalized, 1931-1936, Thaler in French)
1 Birr = 100 Metonya
Birr (1945-date, Dollar in English until 1976)
1 Birr = 100 Santeem
A discussion of the split in 1976 can be found here. The change in the number of gersh to the birr is given in KM but does not appear on the coins or notes, hence my sugestion that we mention it in the description rather than split the currency. The denomination bessa is in KM but I can't find any coin bearing it.



