Help saving a moldy swiss relic

[ssgross]

After coloring, I will apply the final finish of original Swiss design:

Swiss recipe for walnut stocks:
30% Turp
30% RLO
30% fruit (wine) vinegar
10% beeswax.

Can you provide a reference for this? Anything that detailed would likely have many other facts or "lost knowledge" in similar detail, and I would be interested to read.