Rare double telescope graphometer by Férat with case, late 1780s’

Rare double telescope graphometer by Férat with case, late 1780s’




Country of manufacture


Categories: Surveying Instruments & Mining, Scientific


A very early example of an instrument from the production of Férat à Paris. We know that Férat was already active during the Revolution and established already in 1791 in the Bernier’s house.

The present example, with its case with Fleur-de-lys can be dated before the Revolution so late 1780s’.

This double telescope graphometer is of superbe quality with both initiales of Férat, “F” with floral additions.

The half-circle is divided two times from 0 to 180e degrees.

Both telescopes are complete and in working condition.

The stand has a fine focus.

Some little accident at the telescope but without no problem for using them, and two screw for the fine focus are lacking.

The instrument is superbly cased in its original shaped case in red morroco with fleur-de-lys.

The telescopes measures 40cm lenght and the case 43x18x18cm

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.

Payment methods
Terms & conditions