Ruler

Ruler

A ruler with various scales controlled by a rotating knob.

Three views of a wooden ruler

This content is available under a CC BY-NC 4.0 International license (Creative Commons Attribution-NonCommercial 4.0). It has been published ‘as is’ and may contain inaccuracies or culturally inappropriate references that do not necessarily reflect the official policy or position of the University of Lincoln or the International Bomber Command Centre. For more information, visit https://creativecommons.org/licenses/by-nc/4.0/ and https://ibccdigitalarchive.lincoln.ac.uk/omeka/legal.

MNorthWA1583475-230802-120001, MNorthWA1583475-230802-120002, MNorthWA1583475-230802-120003