Ka Nefer Nefer Mask: some clarification

I am very grateful to officials at SLAM for clarifying some of the collecting history of the Ka Nefer Nefer mask. It has now been confirmed that a SLAM conservator was informed by a European Egyptologist in February 1999 that the mask was the one excavated at Saqqara by Goneim (and subsequently published by him). It is not clear if curators at SLAM contacted the SCA immediately or if they waited seven years until they received a letter from Zahi Hawass in February 2006.