-
French Brass Surveying Level by Brosset, c. 1...
-
French Brass Theodolite by Brunner, c. 1880...
-
French Brass Theodolite by Brunner, c. 1870...
-
English Leveling Staff by Baker, c. 1860...
-
French Surveying Level by Ernst, c. 1850...
-
French Brass Theodolite by Laderrière, c. 189...
-
3 Measuring Instruments...
-
Large Amperemeter, c. 1920...
-
Group of Electric Measuring Instruments...
-
Group of Measuring Instruments...
-
3 Cased Pocket Barometers...
-
Group of 7 Historical Measuring Instruments...
-
Electrical Telewriting Machine by Jules Richa...
-
Mechanical Time Switch...
-
Ozone Generator, c. 1920...
-
Early Electric Meter, c. 1920...
-
Large Group of Antique and Vintage Switches, ...
-
Sliding Induction Coil based on Design by Du ...
-
Large Induction Coil by Siemens & Halske, c. ...
-
3 Small Electric Motors, c. 1910...
