In the original image, the background was cream/white, and the camera was black. The solarization caused the background to become dark, and the camera was outlined in white.
First enlarger time: 7 seconds
First developer time: 20 seconds
Second enlarger time: 2 seconds
With the longer developer time I tried before, the glow continued more into the bottom left corner, as we see a little in this one. The less time caused it to be darker.
I believe this process could be used if you want an outline on your subject or you want to make a creepy kind of glow.