Originally Posted by Crossstitcher
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My Davis has the same bubbles and I have that cloudy look on my 66 after I cleaned it.
I believe the bubbles have something to do with the finish on the machines. I rarely see a Davis with a good finish.
The cloudy look is the shellac coating on the machine. It turns brown and cloudy when it gets water on it or is damaged in some other way. It must be completely removed and the head recoated with another finish. I have used TR-3 (time-consuming, but great) and have also removed the finish with Go-Jo and used Armour-All car wax (3 or 4 light coats) as a finish.