I've always used boiled linseed oil, it takes a day or so to dry, but seems
to protect the wood where the original varish has worn/weathered off. It
they are real old or weathered, try a coat of half boiled linseed and half
turpentine which will soak in more, once it has dried then apply a coat of
straight boiled linseed. If the wood's rough cource steel wool may smooth it
up. Dont forget the end grain at the ends.
Beware of the rags used, spread them out flat to dry harden before disposal.
Note too raw linseed oil could be used but it will dry *much* slower, so
best to use boiled.
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