Bright work on a boat. Everyone loves to see it don't they Tom, but no one wants to own the boat it's on. I went to Florida to see my aunt and uncle in the early 60's for a vacation and I redid the bright work on their sail boat. I could have spent a year there in the marina just doing that.
Best money maker I had when I was refinishing furniture was cleaning and re-oiling Scandinavian Teak Furniture. It would come in with the arms and backs discoloured and worn.
A vigorous cleaning with steel wool and some paint thinner to get the years of grime and wear off. If needed some oxalic acid {wood bleach} mixed with hot/boiling water to lighten it back to it original colour and then some teak oil or boiled linseed oil and a fine grade of wet or dry sand paper used with the oil to sand everything smooth. I used #220 or #320 depending on the how the wood condition looked.
Make sure there is enough oxalic acid in the mix. I poured it into the water until I could see it sitting in the bottom of the jar I as I stirred it. Don't use aluminum. I used a quart sealer jar. Brush or use a rag to wipe it on and use gloves.
Rinse the wood well before it dries. You and your lungs will be happy you did. This will remove dark water stains, ink, ect from wood as well. Hardware stores and paint stores usually have it. It will return wood back to it's original colour if it has weathered or gone dark for whatever reason.
The benefit of the sand paper used with the oil was that the sand paper cut the wood to make a fine natural wood filler that filled the wood grain as it was sanded and the friction caused enough heat to bond it to the wood. Gently wiped off after the sanding to get rid of the excess oil. After it had dried for a day a good buffing with a piece of flannel would polish it nicely.
Boiled linseed oil is just raw linseed oil with a drier add to it. We used Japan Drier, if only raw linseed oil was available, which can be found in paint and artist supply stores. I've forgotten the ratio of drier to oil but I'm sure it will be on YouTube somewhere.
Steve.