Very rare proportionnal dividers in nickel silver attributable to Stanley, circa 1860-1870

Very rare proportionnal dividers in nickel silver attributable to Stanley, circa 1860-1870




Country of manufacture

UK and Ireland

Categories: Scientific, Calculating, Drawing Instruments


Extremely rare large proportionnal pair of dividers built in nickel silver.

The instrument is not signed but English, attributable to Stanley datable around 1860-1870. It measures 24cm in length, 1.7cm in width and 1.8cm in thickness.

This form of proportionnal dividers or compass seems unknown from the specialized works on mathematical instruments. We only know another example, preserved at the Science Museum and coming from the Stanley collection, which the company gave to the London Museum when it was dispersed.

This compass has four branches or legs, two of which, on the same side, are folding.

This is a proportional instrument : the more you bend/curve the foldable legs, the greater the reduction. Furthermore, the folding branches can be bent to different degrees, which could allow use as a four-pointed compass, i.e. a sculptor’s compass.

This reduction compass is quite much larger in size and volume compared to usual reduction compasses.

A rare mathematical, engineering or architectural instrument


Ask the Dealer

Item enquiry

To enquire about this item, complete the form bellow to send a message to the Dealer

Enter Email
Confirm Email

Dealer information

FR Le Zograscope

Established by Alexandre Piffault in 2014 and based in Paris at 5 rue de Condé, 75006, very close to Odéon, Le Zograscope specializes in antique and rare books in Science, Medicine and Technology, and rare antique instruments in the same fields. We have especially a strong interest in early and continental microscopy, early and special mathematical/drawing instruments, medical and surgical instrument, and rare technology.
Personnal website :

Shipping information
Payment methods
Terms & conditions