The coin depicts an image of a horseman accompanied by a mint mark, while the reverse features Zeus wearing a laurel wreath. A 2,300-year-old coin thought to be the oldest ever found in Poland has been unearthed by archaeologists excavating an ancient settlement in the north of the country. The coin found in Łysa Góra north of the capital Warsaw depicts an image of a horseman accompanied by a mint mark, while the reverse features Zeus wearing a laurel wreath. It bears a hole, presumably added later, showing signs of wear from a cord or leather strap, indicating that it also served as a pendant. According to researchers, the discovery also represents the first well-documented ancient coin from the Early Iron Age found in Poland. Other discoveries Dr. Bartłomiej Kaczyński, archaeologist from the State Archaeological Museum in Warsaw told Polish media outlet PAP that two additional coins were also discovered during the excavations. "They are most likely so-called Greek obols, though we still have to wait for confirmation that they are indeed those specific coins," Kaczyński said. Dr. Kaczyński also revealed the discovery of a 2,500-year-old house in Poland's Mazovia region. The uncovered building measures 17.5 meters in length and approximately 4 meters in width. An exhibition to showcase the discoveries is set to open in two years.