While going through an old toolbox I came across three straight razors. They are old and dirty. What can I do to clean them up and perhaps use them. I live in the Kansas City area. Are there any good shops around here? The names that I can read are Royal, Damasca Fremont, and Steel K. The holder they were in says Mermod, Jaccard & King Co - Jewelers and Silversmiths St. Louis. It's like a fabric pouch with six little pockets for the razors. Thank you for any pertinent information.