Fakes

This was tried by coin organizations and it can work. You don't ever claim something is a fake, that would not make sense. You simply provide documentation regarding individual's or the organization's opinion regarding the type and characteristics of a particular gun. For example, on the org's letterhead you can state the finish and parts appear to be those that left the factory or state the parts appear to be those that left the factory but no statement can be advanced regarding the date of the finish, for example. You can also simply refuse to make a statement expressing your opinion on a particular gun. If over time, letters of opinion regarding authenticity only appear on those guns that are generally accepted to be authentic, the organization will gain a degree of credibility and the letters will become trusted. Never can the org's opinion be accepted as perfect but it can become respected as nearly so if conservative and accurate. If someone tries for years to get a letter of opinion and is unsuccessful, he will have to provide additional supporting evidence or give up.