Details
Two Ernst Plank Children's Scientific Sets:
'The Young ELectrician' comprising electro-motor working from a Bichromate cell, induction coil, electrodes, battery and bell installation, in motteled maroon box with blue label and 'Box of Experiments B.' - Free electricity or electrostatic induction, in original maroon box with black and gold label, circa 1910 (G, boxes G) (2)
'The Young ELectrician' comprising electro-motor working from a Bichromate cell, induction coil, electrodes, battery and bell installation, in motteled maroon box with blue label and 'Box of Experiments B.' - Free electricity or electrostatic induction, in original maroon box with black and gold label, circa 1910 (G, boxes G) (2)