Late Victorian Cased Sausurre Hair Hygrometer by Poulenc Freres of Paris Antique R&J Beck Microscope The set comprises of three

The set comprises of three walnut cased instruments

the youngest of the brothers continued to flourish in London

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

Above the scale arc are provided Fitzroy type weather indications all complete with a very fine blue steel pointer and brass set knob and pointer for recording a particular reading

“The Property of Benskins Watford Brewery Co

Late Victorian Cased Sausurre Hair Hygrometer by Poulenc Freres of Paris Antique R&J Beck Microscope The set comprises of threeFor 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