SUPERB ANTIQUE ANEROID BY KEUFFEL & ESSER (circa 1890 1900)
A superb English made late Victorian piece of surveying equipment. Made in England by the famous Keuffel & Esser Co. A laquered brass case with signs of use. Aneroid is not operational (arrow not moving, service required). Diameter: 68 mm(without ring and crown). Otherwise, an Unpaid [...]
Read more.. »
Antique Collectible Barometer Imperial Russian Empire measuring device
Antique Collectible Barometer Imperial Russian Empire measuring device. Device In working condition. Please see the photo. Glass is not native. For the first time, the barometer was invented and described in the work Opera geometrica in 1644 by the scientist from Florence (Italy) Evangelista Torricelli. It was [...]
Read more.. »