Effective Date Postage in Cents, per ½ Ounce July 1, 1863 3 October 1, 1883 2

Effective Date Postage in Cents, per Ounce [1] July 1, 1885 2 November 2, 1917 3 July 1, 1919 2 July 6, 1932 3 August 1, 1958 4 January 7, 1963 5 January 7, 1968 6 May 16, 1971 8 March 2, 1974 10 December 31, 1975 13 May 29, 1978 15 March 22, 1981 18 November 1, 1981 20 February 17, 1985 22 April 3, 1988 25 February 3, 1991 29 January 1, 1995 32 January 10, 1999 33 January 7, 2001 34 June 30, 2002 37 January 8, 2006 39 May 14, 2007 41 May 12, 2008 42 May 11, 2009 44 January 22, 2012 45 January 27, 2013 46 January 26, 2014 49 April 10, 2016 47 January 22, 2017 49 January 21, 2018 50 January 27, 2019 55

1 Beginning September 14, 1975, additional ounces were charged a lower rate; the prices listed in this table are for the first ounce. Since July 15, 1979, a surcharge has been added for non-standard envelope sizes.

HISTORIAN

UNITED STATES POSTAL SERVICE

FEBRUARY 2020