Coinage was used in the Ptolemaic Kingdom during the last dynasty of Egypt and, briefly, during Roman rule of Egypt. Ptolemaic coinage was struck in Phoenician weight, also known as Ptolemaic weight (about 14.2 grams). This standard, which was not used elsewhere in the Hellenistic world, was smaller than the dominant Attic weight. Consequentially, Ptolemaic coins are smaller than other Hellenistic coinage. In terms of art, the coins, which were made of silver, followed the example set by contemporary Greek currencies, with dynastic figures being typically portrayed. The Ptolemaic coin making process often resulted in a central depression, similar to what can be found on Seleucid coinage.