The Numismatic Department of Plovdiv Regional Archaeological Museum boasts a collection of 60,000 coins, dated VI c. B. C. - XX c. A. D. The department is constantly enriching its fund either through acquisition from various archaeological excavations or by buying out coins from private collectors. A substantial part of the numismatic treasure of the Archaeological Museum is comprised of coins minted in the period of I - V c. A. D. Philippopolis was the first town in the inner part of Thrace that began to mint the so-called "pseudo-autonomous" bronze coins. The Emperors Domicianus (81 - 96), Trajan (98 - 117) and Hadrian (117 - 138) gave permission to the town to issue coins without the mediation of the Roman legates, temporarily governing Thrace. Alongside with the coins, the Museum collection holds a considerable amount of medallions, issued as commemorative signs to eminent representatives of the Emperor in the province or to town notables. In some periods they were also used as legal tender. The Museum boasts one of the richest collections of 100.000 exhibits of artefacts related to the history of Plovdiv and its region. Plovdiv is the heir to one of the biggest and most famous ancient towns in the Balkan Penninsula - Philippopolis. http://www.visitplovdiv.com/en/node/840