Antique electro-stimulation apparatus - D.B. Kagenaar Utrecht

This vintage medical instrument, produced by D.B. Kagenaar, MechanicUs Utrecht, is an electro-therapeutic stimulation current device. The instrument may be a precursor to the more modern TENS (Transcutaneous Electro Neuro Stimulation) technology. The apparatus is housed in a wooden box and includes copper rods, wires, and a drum coil, which is presumably central to its function. Overall, the instrument appears to be in good condition and would be suitable for a museum exhibit or for collectors of medical history.