I agree with Philip.
This old oil may have been applied over the centuries to prevent rust, maybe not linseed, as all old oil will gum and solidify in time.
We often see this accumulation. A little can look very nice, but if it starts to cloud the appearance and gum up the works, it's best removed and as Philp said, has nothing to do with any original finish.
Of course, a light oiling afterwards is again required............starting the process over again? :-)
|