Proportional Dividers
Collection
Code
DU_278
Catalogue link
The adjustable pivot point allows the draughtsman to enlarge or reduce measurements by a fixed ratio.
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Glass bottle -
Egg cup -
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Vet's suppository mould. -
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Angle divider -
[Unidentified object from The David Usborne Collection] -
Sliding calliper -
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Protractor -
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[Unidentified object from The David Usborne Collection]