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, 11:20, 26 December 2016
== Summary ==
{{Information
|Description ={{en|1=
Model of a Chinese South Pointing Chariot, an early navigational device using a differential gear.}}
|Source =https://commons.wikimedia.org/wiki/File:South-pointing_chariot_(Science_Museum_model).jpg
|Author =Andy Dingley
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== Licensing ==
{{cc-by-sa-4.0}}