[Clay St. Hill RR., San Francisco, Cal. Run by A.S. Hallidie's patent endless steel wire rope and gripping attachment. Overcomes an elevation of 307 feet in a length of 2800 feet. Worst grade, one foot in six]
[Clay St. Hill RR., San Francisco, Cal. Run by A.S. Hallidie's patent endless steel wire rope and gripping attachment. Overcomes an elevation of 307 feet in a length of 2800 feet. Worst grade, one foot in six]