Slide rule
Category
Machinery and industrial devices
Date
Unknown
Materials
Cardboard, Mahogany
Measurements
310 mm (Width)
Order this imageCollection
Calke Abbey, Derbyshire
NT 289893
Summary
'Unique' slide rule with a mahogany frame in a cardboard case with a label giving instructions for care. Stamped inside 'Marine and (ampersand) Overseas services Ltd.'
Marks and inscriptions
Marine and (ampersand) Overseas services Ltd.