The price of a stamp for a domestic letter in 1986 was 22 cents. Postage has more than doubled in the 28 years since 1986. In comparison, 28 years prior to 1986, in 1958, the price of stamps rose from 3 cents to 4, the first increase since 1932.
The price of a stamp was only 15 cents in 1980, but it rose twice in 1981 and again in 1985. When the decade ended, postage for a domestic letter was 25 cents. The cost of sending a postcard in 1986 was 14 cents and rose to just 15 cents by the end of the decade.