Lieftinck, Pieter 

Pieter Lieftinck, Ex-Dutch Official, 86 AP Published: June 12, 1989 LEAD: Pieter Lieftinck, a former Dutch Finance Minister and top official of the International Monetary Fund, died of heart failure at his home on Saturday, a relative said. He was 86 years old. Pieter Lieftinck, a former Dutch Finance Minister and top official of the International Monetary Fund, died of heart failure at his home on Saturday, a relative said. He was 86 years old. Mr. Lieftinck, who was born on Sept. 30, 1902, became a lifelong member of the Dutch Labor Party. He devoted his life to monetary and tax reform and served as a delegate to the World Bank and the I.M.F. in Washington from 1956 to 1976. He was Finance Minister from 1945 to 1952 and oversaw the financial side of the Netherlands’ recovery from the destruction of World War II..