I think a lot of museums get donations with stories instead of provenance. It is up to the curator and his staff to verify these items as correct and original. I was in a small VFW mueseum in central Illinois that had many reproduction WW2 items on display. When I inquired about them I was assured they were original pieces brought back by vets. I could see were a Krag rifle would be accepted as stock and original. Especially by someone who is not a member of the KCA!