The Famous Twenty Mule Borax Team from Death Valley California.

[New York]: Pacific Coast Borax Co., [ca. 1925]. First edition. Small twelvemo. The title page reads "Concerning Borax Bill and the Famous 20 Mule Borax Team from Death Valley California." 1[16] pp. including frontispiece of Borax bill. Charmingly illustrated through and with a half-tone of the mule team across two pages. Publisher's brown printed wrappers with highlights in red. Excellent condition. he wagons were among the largest ever pulled by draft animals, designed to carry 10 short tons (9 metric tons) of borax ore at a time. The rear wheels measured seven feet high, with tires made of one-inch-thick iron. The wagon beds measured 16 feet long and were 6 feet deep and were constructed of solid oak. They weighed 7,800 pounds empty; when loaded with ore, the total weight of the mule train was 73,200 pounds. Long after the transportation of the borax was mechanized, the company sent. out these 20 mule teams as a sort of advertisement. Promotional team appearances ended with an outing in the January 1, 1999, Rose Parade. They have become perhaps the leading symbol of Death Valley.