Vintage Stewart Warner Lighting kit for gauges, kit #1-366-CH. This was in my dad's stuff when we cleaned out his garage after he passed, so I don't have a lot of info on it. I'm guessing at some point dad had a couple of these kits, because inside the envelope was two sets of instructions, two bulb brackets but only 1 socket. I'm including both brackets, the socket and 1 instruction, along with the original package. $25 includes first class shipping to you. Ask any questions, look the pictures over.
The Jalopy Journal
