Well obviously a miscommunication somewhere along the line as whilst i remember you using the AF #15 cover as an example, i believed that was just a singular example of an expensive piece, and genuinely thought you were just talking about art that was out there, and not unknown art pieces that have never surfaced. It was extremely loud where we were, so maybe i didnt hear correctly, or maybe i had drunk too much by that stage.
As i mentioned previously, in those cases it would need to be authenticated by experts.