Thoughtful gifts for curious people
£17.95
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This traditional folding wooden ruler is printed on both sides with 200 years of human technological achievement. On one side there is an accurate mm and cm scale along with a timeline of events - at a centimetre per year! The other side has a matching timeline of concepts and periods, labelled in colour, so you can flip the ruler to see different information.
Folding wooden ruler, 2 metres long,
Printed on both sides,
Graduated in centimetres and millimetres.