TEHRAN – A cultural heritage laboratory in Ilam province has finished the restoration of 200 coins minted in different historical eras across Iran.

The coins will go on show at museums in the western Iranian province, IRIB reported on Tuesday. 

In about 220 CE, the Sasanian dynasty of Iran introduced the concept of thin flan coins, issues that were struck in relief on both sides. In order not to produce intolerable stresses in the dies, since the thinner the material the more force necessary to make it flow into the recesses of the die’s design, the depth of relief on such coins was of necessity much shallower than with earlier currency. Such techniques spread by way of Byzantium to northern Europe, where the emperor Charlemagne struck thin flan deniers (small silver coins), or pennies, which became characteristic of both his own and neighboring kingdoms.

AFM