I have a Swedish made Goya g-10 and it is nearly 50 years old now. It's in decent condition albeit there are lots of small cracks in the lacquer on the top of the guitar.

There are also some tiny cracks on the pegs. What can I lubricate them with to help them last longer. I've read a lot of diverging opinions on how to treat machine heads, but no one mentions the plastic (called buttons or knobs I think) at the outer end.

by the way, I read of someone replacing the plastic saddle of an old Goya with bone who found s/he actually preferred the original.

My guitar wouldn't command a high market price at present, but it's a pleasant instrument to play.

so any advice re the tuner knobs?