Late Victorian Cased Sausurre Hair Hygrometer by Poulenc Freres of Paris Antique R&J Beck Microscope The second label is an

The second label is an instruction for use which translates as follows: “To maintain the limb and division of the sextant

the youngest of the brothers continued to flourish in London

They were also known to have had links with Charles Darwin

For a short period the name Gilbert & Co was used and by 1806

the newly built College of Advanced Technology catered for both courses and The Spectacle Makers Company agreed to fund its tutors for the first two years

Late Victorian Cased Sausurre Hair Hygrometer by Poulenc Freres of Paris Antique R&J Beck Microscope The second label is anFor sale, a French late Victorian period cased Saussure type hair hygrometer by Poulenc Freres of Paris. Constructed around a lacquered brass rectangular frame with attached wall hanging loop, a piece of hair is clamped at the top with the clamp attached to a screw mechanism which allows for adjustment of tautness. The hair is suspended through the centre of the frame and similarly clamped to the base pointer mechanism which has fine balance