California gold coin discovery spurs rush of theories
Posted: March 6, 2014 - 3:03am

David Hall, co-founder of Professional Coin Grading Service, poses with some of 1,427 Gold-Rush era U.S. gold coins, at his office in Santa Ana, Calif., Tuesday, Feb. 25, 2014. Nearly all of the 1,427 coins, dating from 1847 to 1894, are in uncirculated, mint condition, said Hall, who recently authenticated them. Although the face value of the gold pieces only adds up to about $27,000, some of them are so rare that coin experts say they could fetch nearly $1 million apiece. (AP Photo/Reed Saxon)
LOS ANGELES (AP) — Word last week that a Northern California couple found $10 million in gold coins while walking their dog has set off a Gold Rush...