David Crisp, an amateur treasure hunter, found about 52,500 ancient Roman coins in a field in southwestern England. Mr. Crisp used a metal detector to fine the treasure. The coins were buried in a large clay pot that was about 30 centimeters deep and that weighed about 160 kilograms. Mr. Crisp first found several loose coins, but he resisted the temptation to dig up the whole pot. He contacted archaeologists, who excavated the contents. The coins were from the late third cebtury A.D., and they are worth around $500,000. Crisp cannot keep the coins by law, but he gets some of the money from thesale of the coins to a museum.