Vintage RUBICON GALVANOMETER With Illumined Glass Scale (Tested Working). Calibration date 02-21-1955. This electromechanical current measuring device is in EXCELLENT, ORIGINAL, WORKING CONDITION. The original 6 volt lamp can be seen projected on the frosted glass scale. As shown, I was able to calibrate -0- on the scale with the course adjusting arm (on top) and the fine adjustment knob (on the side) in the middle of their adjustable range. This is a delicate instrument so I would prefer local pickup if possible. If shipped it will be double boxed and packed very carefully. However, I cannot guaranty it working on arrival. It is working now (as shown it these pictures), you make the call.