The Sands of Time
By James Grahame
Today's useless factoid: This 60 minute hourglass would run for about 363 minutes on the moon. It's filled with sand and never needs batteries. Oh, and it's easy to use; just flip and gaze intently. Perfect for hours of amusement and accurate to within 60 seconds per hour.
River City Clocks 9-inch Hourglass
