Palming the coin, Steve flipped it over on the back of his left hand,
peered at it. Staring up at him was the metallic likeness of Angus
MacNamara, first man to reach the planet Mars. "Heads," said Steve, and
one of Barling's officers came over to verify it.
Barling shook his head stubbornly. "How do I know it isn't a phony, a
two-headed coin?"