Originally published by Thomson Publications Australia, this comprehensive booklet illustrates the history of earthmoving from horse drawn implements through to the Caterpillar D10.  Although it is predominantly focused on Holt and Best and then Caterpillar it also covers a wide range of machines and includes the history of the Diesel engine.
Amazing photographs include a 1908 demonstration of Holts first crawler, an early Holt used for mining in Nome, Alaska, the development of the grader from Russell in 1919 through to the Caterpillar 14D in the 1960s and many, many more.

This is a reprint from the restored original, with semi-gloss covers and high quality paper throughout - 28 pages in total.  Posted in acid-free protective sleeve in document envelope and marked 'Do not bend'.

We also have other items listed and may be able to help if you are after a specific subject not listed