Letter Rate 15¢ Package Rate 15¢ Postcard Rate 10¢ Effective 5/29/1978 Israel 8/14/1980 Workers Strike in Poland Workers at the Lenin Shipyard in Gdansk, Poland went on strike. About 17,000 workers skip work beginning the Solidarnosc (Solidarity) movement started by Lech Walesa. American President Jimmy Carter (1/20/1977-1/20/1981) Argentine President Jorge Rafael Videla (3/29/1976-3/29/1981) Australian Prime Minister Malcolm Fraser (11/11/1975-3/11/1983) Austrian President Rudolf Kirchschläger (7/8/1974-7/8/1986) Bahamian Premier Lynden Pindling (5/10/1969-8/21/1992) Bahamian Prime Minister Lynden Pindling (5/10/1969-8/21/1992) Belgian Prime Minister Wilfried Martens (4/3/1979-3/31/1981) Brazilian President João Figueiredo (3/15/1979-3/14/1985) British Prime Minister Margaret Thatcher (5/4/1979-11/28/1990) Canadian Prime Minister Pierre Trudeau (3/3/1980-6/29/1984) East German Chairman of the State Council Erich Honecker (10/29/1976-10/18/1989) German President Karl Carstens (7/1/1979-6/30/1984) Japanese Prime Minister Masayoshi Ohira (12/7/1978-6/12/1980)