Pay in Dollars!
I found the House of Leather in north part of Tehran. The red price tags for each item was in two currencies, Iranian Rial & American Dollar.
Price tag for pair of brown shoe (on the left side) is 1,395,000 Rial [$139]
Price tag for pair of brown shoe (on the middle) is 1,544,000 Rial [$154]
Price tag for handbag (on the right side) is 1,285,000 Rial [$128]