Here's the switch wiring from the 1934 Service Letters. And the A.E.A. data page for the 33 Super which is essentially the same. Those headlights with the triple filament Mazda 3003 bulbs is a 1933 and 1934 only feature for Packard. The switch is also unique to the 1933/1934 Packards, made by RBM.
34 Light Switch.JPG (73.11 KB)
33 34 headlamp.jpg (880.65 KB)
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