The Lira was introduced in 1935 with Italian occupation, and was
replaced by the East African Shilling with British occupation in April 1941
at 1 Pound Sterling = 480 Lira.
The Ethiopian Dollar was introduced on July
23, 1945 at a rate of 1 US Dollar = 2.48417 Ethiopian Dollars, replacing the
East Africa Shilling at 2 Ethiopia Dollars = 1 Africa Shilling.
Dollar devalued slightly on January 1, 1964 at 2.5 Ethiopian Dollars = 1
U.S. Dollar. On September 21, 1976, the Ethiopian Dollar was renamed the
Birr. In January 1998, Eritrea introduced the Eritrea Nafka at par with the
596.2L Pre WW II equals one 1945 dollar. A 6 L fee was about 1 cent.
I do not know how much inflation took place between 1935 and 1941.