BELFORT INSTRUMENT COMPANY HAIR HYGROMETER - MADE IN USA

Description

A very clean Hair Hygrometer from Belfort Instrument Company in Baltimore, Maryland. As I know nothing about this instrument I will quote from the company's website:
The human hair hygrometer was invented by H.B. De Saussure in the 18th century and has stood the test of time as a reliable and accurate method of measuring relative humidity, not actual amount of water vapor in the air.
The increase in length of human hair as relative humidity changes from 0 to 100% is 2.5% of the overall hair length. Hundreds of strands of untreated human hair are collected from remote areas of the world, treated to remove fats, washed and dried and used in each Belfort Recording Hygrothermograph to provide a consistent and accurate (1% RH at room temperature) measure of relative humidity over many years of service in museums, library’s and industry.
The Frenchman, Julien Friez, founded the Belfort Instrument Company in 1876 and it's still going strong today.
Over the years the company has supplied instruments for missions from the Wright Brothers at Kitty Hawk to the US National Weather Service. This hygrometer appear to be in excellent condition and I see no reason that a knowledgeable person couldn't have it up and running in short order. I am, however, selling it As-Is. The case measures about 6" x 13-1/4" x 9-1/2" tall including the handle. I am happy to answer any questions or supply more photos.
If you choose a shipping method other then USPS Priority or FedEx, or if the purchase
price is over 0.00 I recommend adding extra insurance.
Please ask questions before bidding. INTERNATIONAL BUYERS WILL BE
RESPONSIBLE FOR ALL SHIPPING AND CUSTOMS CHARGES.
If shipping seems high, please send me your zip code
and I will gladly recalculate the cost for you!