It's not uncommon to find someone to have painted over an insignia for some reason or other. It has happened to me a dozen times. I have long championed used nail polish remover and Q-tips to do this, and have often shown before and after pics. This time, I thought I'd remove half the paint and show the effectiveness
This WWII USMC sweetheart pin appeared to have been painted a LONG time ago, with a thick off-white paint, I think it may have been house paint. A little nail polish remover, a few Q-tips, and the difference is plain as day..