Posts tagged hygrograph

Antique Negretti & Zambra Marine Weather Ships Boat Thermo Hygrograph

MAY/MAY NOT HAVE MINOR STORAGE MARKS AS SEEN. IT IS IN WORKING ORDER BUT ACCURACY MAY NOT GURANTEED. PLEASE SEE PICTURES AS THEY ARE PART OF THE DESCRIPTION.

Antique Hygrograph, scientific humidity instrument

Don’t really know much about this Hygrograph. Don’t know the age. Don’t know how or if it works or if its missing any pieces. I will be insuring this item. The item “Antique Hygrograph, scientific humidity instrument” is in sale since Tuesday, November 23, 2021. This item is in the category “Antiques\Science & [...]

Vintage 1920s Julien P. Friez Hygrograph. Vintage Scientific Instrument

In excellent clean condition. From the home of a retired surveyor that collected scientific instruments. The item “Vintage 1920s Julien P. Friez Hygrograph. Vintage Scientific Instrument” is in sale since Tuesday, October 27, 2020. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The [...]

Vintage Bendix Julien P. Friez 580 Hygrograph Barometer Instrument

This item is in the cosmetic condition shown. It was pulled from a working environment for upgrade and is guaranteed to be in good working order. The sale includes ONLY what is shown. We are dedicated to providing excellent customer service. If the value of the order is over two hundred dollars [...]

Antique 1920 Darton Hair Hygrograph Scientific Humidity Instrument, Swiss Movemt

Antique 1920 Darton Hair Hygrograph Scientific Humidity Instrument, Swiss Movemt. Unusual heavy Steampunk Cool fully functional F. This device used a length of human hair to measure changes in humidity depending on moisture in the air. Circa 1920, its a heavy cast iron framed device with [...]