Brass Polar Plani Meter
- Sold for:
- Clocks, Watches & Scientific Instruments - 2502
- Date / Time :
- May 01, 2010 10:00AM
Brass Polar Plani Meter, tracer arm with stamped conversion factors, measuring wheel with vernier and worm gear drive to main dial all in a felt line hinged case, lg. of instrument, 9 3/4 in.