Proportional Dividers
Collection
Code
DU_278
Catalogue link
The adjustable pivot point allows the draughtsman to enlarge or reduce measurements by a fixed ratio.
Related objects
-
Sine bar -
Protractor -
[Unidentified object from The David Usborne Collection] -
Cobbler's anvil -
Hip prostheses -
Egg cup -
Meat fork -
Percussor -
Vet's suppository mould. -
Bone forceps -
Surgical retractor -
[Unidentified object from The David Usborne Collection] -
Barrel gauge -
Glass bottle -
Anemometer -
[Unidentified object from The David Usborne Collection]