Description:
The different components of this object are all affixed to a tall rectangle. Along the top and the bottom are binding posts -- three at the top, two at the bottom -- featuring labels such as "M.C. -", "M.C. +" or "L.C. LOW". The major components of the device are enclosed in an arch-shaped case. Closer to the top of this case is a faceplate. Closer to the bottom is a circular window, allowing the user to see the major mechanical component. Once the case is opened, one sees that five different wires emanate from the main component and run through the rectangular backing (presumably to the binding posts).
Written onto the arch-like case: "Relay Reserved GC. E677".