The world of San Francisco's cable cars is society in miniature. It is peopled by the men who operate and maintain the system, its passengers and hangers-on and the inevitable splinter groups. It's territory is a city of hills and landmarks, of tourists and their trade. And this small world is prey to all extremes of propaganda and protest, a minimum of crime and violence and its share of surprises. Three cable cars lines currently serve San Francisco. with over 90 black and white photographs.