Thread: 2 new razors

Yes, it is quite OK to leave the tarnish there. No matter how careful you remove the scales, in the minds of most collectors, the value, depreciate once you remove the scales.
I would also advise not to sand or use steel wool on the electric of you want to preserve any grind marks, just use the metal polish to remove excess tarnish. And be careful polishing the area of the etch, polish will quickly "lighten" the text and will lose the lovely contrast.

A drop or two of oil in the pivot area will prevent further tarnish... but not too much oil, or that area will become too slick and will make the blade feel loose no matter how tight it is pinned... soak up excess with a paper towel.

Hope this helps.