These Coins and other specimens I obtained on site in Ruhuna, Lanka in 2001 December all from or via Mr A. Ratnayaka a collector in Katharagama, who provided most of the 280 coins and 300 other items for the monograph and collection published in 1999 Ruhuna. An Ancient Civilization Re-visited. Numismatic and Archaeological evidence on Inland and Maritime trade, by Osmund Bopearachchi and Rajah M. Wickramasinhe.