poster

Red and black text: “Note: The snook and the Inductor must not be connected simultaneously, nor the Enlightenment and Trochoscope.” Under the text, simple coupling scheme with arrows and in/out markings. At the cover is attached an address patch with text: “The note for connecting app. in Las. first rtg-lab, since the first high-voltage transformer was installed in 1914.” Appropriation very much the fist. Appropriation and address tag numbered: “32.”