[SteamWolf]

How about this for a curiosity.

The Bottrill Dreadnought, invented before caterpillar tracks as a way of traversing soft ground with heavy machinery.




Remarkable Australian Farm Machines: Ingenuity on the Land - Graeme R. Quick - Google Books

Australian Tractors: Indigenous Tractors and Self-Propelled Machines in ... - Graeme R. Quick - Google Books