This guitar is in need of a re-fret, a fret level at least but on this occasion it came in for a setup. On inspection I found the nut had work too low, you can see where the strings are wearing into the neck (unless this is evidence of someone attacking it with a file?).
The bridge was unserviceable as some of the grub screws had seized up in the saddles. I stripped it down and rebuilt it, cleaning and adding a little lubrication where required.
The bone nut was a straight forward job.