This 70’s Musicmaster has been re-fretted, given a new nut and setup. Here you can see the gallery of how this played out. Those old frets were worn really low and were quite small, meaning that getting a grip on them to pull them out was quite tricky. You have to pay extra attention when you have frets like this to avoid damaging the fretboard, which is quite thin meaning you don’t have much scope to “level out” and marks.