Coins are engraved metals like books full of historical, cultural, religious, and mythological information. They are also like written documents that can be analyzed through their motifs through symbolism, and they are the most important guide for researchers in recognizing and familiarizing themselves with religious beliefs in different historical periods. Therefore, studying the images and symbols on them opens a window to ancient periods for researchers. Due to its long reign, the Parthian is one of ancient Iran's most important critical periods. They minted many coins with various motifs. One of the symbols used is the pattern of a palm branch, which from the time of Phraates II can be seen as the reverse of the drama and tetradrachm coins of the Seleucid Mint. This study has investigated the symbol of palm branch in coins of Phraates II in the Seleucid Mint to realize political goals. These coins are kept in Reza Abbasi Museum in Tehran (Iran) and were purchased through private collectors. In this study, 250 Parthian coins were examined, among which 60 coins had palm motifs. The palm branch is considered a mythological plant common between Mesopotamia, and Greek. Parthian king, the branch palms were used as symbols for victory, under the cultural influence of the Seleucid and Mesopotamia.
