270-year-old rare Universal Slide Rule discovered at Canberra Green Shed

Kathryn Lewis
By Kathryn Lewis
Updated March 7 2021 - 10:01pm, first published February 24 2021 - 12:00am
A rare slide rule was found at the Green Shed in Mitchell last year. It is believed to be one of just five left of its kind. Picture: David Whittaker

A rare 270-year-old artefact, which may be one of just five left in the world, discovered in a Canberra warehouse was first dismissed as just a ruler.


Kathryn Lewis

Kathryn Lewis

Canberra Times Journalist

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