I recently inherited my great grandfathers shaving gear which included an old Fatboy, a ball handle tech, and a Star 3-piece (I assume a tech copy). All three have some plating loss on the caps / doors and what seems to be some corrosion under the plating . I have cleaned them thoroughly, but I'm not sure what else to do to keep them from getting worse. Should I have them replated or is there something else I can do to protect them. Help !