The First Ten Years character jug produced by Glazed Expressions of Staffordshire, England, in a 1989 limited edition of 5,000. This character jug celebrates Margaret Thatcher's first ten years of service at the British prime minister. Margaret Hilda Thatcher (1925-2013) was Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the first female British prime minister and the longest-serving British prime minister of the 20th century. As prime minister, she implemented economic policies that became known as Thatcherism. A Soviet journalist dubbed her the "Iron Lady", a nickname that became associated with her uncompromising politics and leadership style. Her husband Dennis Thatcher forms the handle of the jug.