I was rather surprised to discover the crazed finish on top was shellac! Even better the crud I thought was damaged was all junk on top of the shellac!
Denatured alcohol and a little scraping got it off. I ran out of alcohol so it's not quite done, but here's how it looks so far.
If I need to even out the color, I may use a little tinted lacquer or stain. Then clear coat with lacquer.
