Degaussing a Wells Gardner 25" unknown chassis

I have a big "bruise" at the bottom right corner of one of my WGs. Most of the time, it's a purplish color when the rest of the screen is definitely not purple - blue, blue and a red.

Do some WGs have degaussing switches somewhere on them? If not, does anyone have a cheap degaussing wand they want to sell me for cheap? Or loan me in the Chicago area....

Disregard - this seems to have "healed" itself after a few plays.

If you ever get to the point where you need to degauss again, it can be done with a soldering gun (not iron). You just hold the back of the gun near the screen.