This is probably the first time I've been at this cross-roads in my vintage-collecting experience. I cleaned up the rust as best I could with Evapo-rust. Aesthetically, I am indifferent. This PX-10 will never be a pristine show piece. (I don't even care for "wall hanger" beauties. Heresy, I know.) Maybe, from a preservation approach, I should touch-up to prevent further deterioration?