Postal de lino Mount Timpanogos cerca de Provo Utah 15489 vista aérea
Linen Era (1930-1945). When World War I ended at the end of 1918, the rate was lowered to its pre-War level of one cent. 2013 (January 27) 33 cents. 2012 (January 22) 32 cents. 2011 (April 17). 29 cents.