I have this good condition Gottlieb High Hand. The Gold stamping on the drop targets has been worn away. Instead of buying new targets, I was going to gold leaf them. Nixed that, and tried something else.
Before.
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Used this Krylon Gold Paint Pen.
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While standing in front of the game it is hard to spot the repair. The 'After Photo' is a close up and the paint strokes are slightly noticeable. Surly any errors could be wiped off right away with solvent.