It may be a work of art. It may have some more useful purpose. Or maybe it's some combination of the two. But Dwayne Romine would like to know for sure. He and his 12-year-old son, Greg, were looking for deer tracks on some family property near Indianola recently when the older Romine spotted something a little unusual in the ground. "I said 'look at that, a piece of rusted metal'," he recalled. "Greg said, 'Naw, that's just an old tree branch,' but I said 'No it's not.' "Sure enough, when we pulled it up, it was metal." That alone...