Per my SA the workshop thoroughly examine the piece before working on them, as the SA's aren't trained to or liable to authenticate the pieces aside from verifying the purchase history, submitting a service request and sending it off to the workshop. I'd think (and hope) the skilled artisans would have their own ways to authenticate the pieces and would send them back and refuse to service them if the creation is deemed to be fake/super fake.Actually, I was more thinking about people taking advantage of that and bringing in super fakes to be engraved. If the serial number has disappeared how can they prove it’s the real piece purchased? 😱