Cased Brass and Steel Paraboloid Condenser
- Clocks, Watches & Scientific Instruments - 2555M
- Date / Time :
- July 16, 2011 10:00AM
Cased Brass and Steel Paraboloid Condenser, Carl Zeiss, early 20th century, of typical form with brass eyepiece and steel body, box contains steel plate with two apertures marked 1.0 and 1.1, ht. 1 1/8, lg. of plate 2 3/8 in.