"... Extends US sanctions to a wide-ranging ban on all exports of goods and services to Iran, as well as investment..."
Source: Maloney, PE, Pg. 452
"The move took a toll; Shell subsequently dropped out of a revived bid process, and the black market rate for the Iranian currency crashed from 2,500 to the dollar in January 1995 to 4,300 to the dollar by April and 6,500 to the dollar in May 1995.
"The currency would never again recover its value, as future rounds of sanctions depressed its value even more dramatically."
Source: Maloney, PE, Pg. 453