Prokopov, I. & Paunov, E. Coin Collections and Coin Hoards from Bulgaria. Modern Counterfeits and Replicas of Ancient Greek and Roman Coins from Bulgaria. Sofia, 2003. 8vo., pp. 76. [With:] Cast Forgeries of Classical Coins from Bulgaria. Sofia, 2004. 8v, pp. 88. [With:] Contemporary Coin Engravers and Coin Masters from Bulgaria. “Lipanoff Stufio.” Sofia, 2004. 8vo., pp. 88. [With:] Counterfeit Studios & their Coins. Sofia, 2005. 8vo., pp. 88. [With:] Coin Forgeries & Replicas. Sofia, 2006. 8vo., pp.80. All in the original printed card covers, illustrated through­out, little used and virtually as new. A valuable series, important for the identification of modern forgeries. [5]