I am wondering what the earlest surviving serial number known for the edison square Top Standard is , can anyone share a known number less than 500? I read someplace that over half of the very early two clips were destroyed or returned. Of course there is always a reason for questions such as this, in my case, I am taking to Union an early one without a gear cover or the holes for one and it comes with an early Standard Speaker, not the automatic. While I have your attention , I will also be taking an original reproducer for a regina hexiphone, and an edison H reproducer that I believe has been modified to work on the regina hex. if any one has a need please contact me. thanks brice