This department, housing 424 examples, has been open to the public since the start of 2012. It showcases stamps from various countries such as former Russia, Hungary, the Democratic Republic of Guinea, England, North Korea, and several others. Most of the stamps are related to Iran before and after the Islamic Revolution.

Metal coins (made of silver, copper, and bronze) spanning two thousand years and mainly related to the country of Iran also have been identified and exhibited.

In addition, the summary of the most recent research (up to 2004 AD) on the practice and how to substitute monetary transactions for barter transactions is publicly available, particularly beneficial for educating and researching students.