Peter Tkach's workshop, in the basement of his Webster Groves home, could belong to any craftsman. It's a modest space of long tables, drills, saws, filing drawers, and stacks and stacks of wood -- cherry, spruce, rosewood, pear. But Tkach is not a hobbyist carpenter, and he's not building cabinets or chairs, or even guitars. His craft leads back... More >>>