100 Iranian rial note & bill
100 Iranian rial Front

100 Iranian rial the front is Ayatollah Moddaress
Seyyed Hassan Modarres (Persian: سید حسن مدرس c. 1870 – Sarabeh, December 1, 1937, Kashmar), was an Iranian Twelver Shi'a cleric and a notable supporter of the Iranian Constitutional Revolution. He was among the founding members, along with Abdolhossein Teymourtash, of the reformist party Hezb-e Eslaah-talab, which was formed during the fourth national Majlis of Iran. He has been called "brave and incorruptible" and "perhaps the most fervent mullah supporter of true constitutional government."
100 Iranian rial Back

100 Iranian rial the back is Parliament building, Teheran
1- Watermark
The portrait of Islamic Republic Logo in the left part of the banknote is embedded in the paste of paper. When the Banknote is held up to the light, the image can be seen from both sides.
2- Security Thread
A 1 mm wide polyester thread, with the microprint of the name of the Central Bank of the Islamic Republic of Iran "Bank Markazi Jomhouri Islami Iran" in Farsi script is embedded in the paper. When viewed under ultra violet light, this thread is seen in blue, yellow and red colors.
3- Microprint
The name of the Central Bank of the Islamic Republic of Iran "Bank Markazi Jomhouri Islami Iran" in Farsi script is in microprint and appears below the Serial Number (bottom right-hand side). The text is visible under a magnifying glass.
4- Intaglio Printing
This feature can be easily detected by touch in some parts of the Banknote.
5- See-Through
On the left side of the Banknote above the Watermark is a "See-Through Image". When the Banknote is held up to the light, the partial image on the front completes perfectly that on the reverse side.
6- Serial Number
Letterpress printing of serial number with single color fluorescent ink, changes under ultra violet light to golden color.