Bushing dropped out of crab distributor?

[GB SISSON]

So today I got to do something entirely different at work. A while back a young mobile mechanic I know was working on a '47 ford flatbed in a barn on an old waterfront estate. He was hired by the 42 year old grandson of the gentleman who had it restored in 1974. I had seen the truck briefly about 30 years ago when I built cabinets for the folks. This mechanic had been trained at an Audi dealership and he was not familiar with carbs and distributors so he brought them over to my shop one weekend. I sent them to Charlie NY and they returned all new.
Last Saturday I took the parts and some wire and a temporary fuel tank, fresh battery etc etc to the barn and met the current owner. The barn is huge but has no lighting and few windows so work was by a clip lamp and a good flashlight.The truck had an electric fuel pump and 12 v alternator. I pulled the plugs added mmo, cranked it on and off. Got pressure on the manual op gauge. Installed carbureuter and distributor, new plug wires and then had to high tail it home for a birthday dinner engagement. Today I returned with a few things I needed such as a new low pressure electric fuel pump as the old one was full of ancient gas and crusty. Hooked up the outboard poly tank and an inline filter, got a good squirt from the accelerator pump nozzles, but no spark. The existing napa coil had looked ok at a glance, but when I pulled it up from the bracket it was labled 6V. Hmmm could be a problem. Still I had to look down into the dark abyss between the radiator and engine to see if I forgot to hook up the wire. The grandson was helping me so we were both peering down there with a flash light. The wire was on and tight, but what was that shiny circular thing down by the crank pulley? Previously I had noticed the new bushing Charlie had installed at the drive end about the same size, but it looked more 'bronze' than the silvery thing gleaming against dirty splash pan. We both saw it and neither of us could reach it so I stood on the bumper and hooked it with a finger and as I felt it I realized what it was.....
Last Monday I discovered that my wedding band had disappeared from my finger. Losing 20 lbs will do that.... I had no Idea where or when it may have fallen off. Could have been weeks ago and I had been Many different places. I scoured my vehicles, shops house etc, but knew it was a longshot. I felt really bad telling my wife so I hadn't yet. Tonight she enjoyed hearing the story and she added that if we had gotten spark we never would have peered down there with a flashlight and there it would be for the next generation to discover. (or on the road) It was a good day. Tomorrow I return with a coil and my ring in my watch pocket until I get it resized. Will regular plumber's solder work or do I need to get some kinda silver solder? I think it's white gold. I do have a good sharp blade in my hacksaw already. I think it's a lenox....... Pray for spark.