Canon City, Colorado Royal Gorge Il ponte sospeso #4370, cartolina bordo bianco
1974 (March 2) 8 cents. 1981 (March 22) 12 cents. White Border Era (1915-1930). When World War I ended at the end of 1918, the rate was lowered to its pre-War level of one cent. Undivided Back (1901-1907).