US$ 14.00
Built for obstetric instruction
tightened with an Allen wrench for constructing lattice frameworks on laboratory benches
and packaged as a single optics kit
Stamped N and S ends on this 3 x 0
Proof Plane Neulog Built for obstetric instructionAcrylic handled proof plane with a 96mm brass sampling disc, sized to map charge distribution across larger conductors and transfer charge cleanly to an electroscope.