Anna,
The serial number came from a list accumulated over many years--maybe as early as the 70s--by Dave Soracco and Dave Rivera, which forms a significant part of the Commercial database. The list itself has floated around for quite awhile, I was given a copy of it about four years ago. There are no sources associated with this list, and so the origin of your number on it is lost to history.
If you decide to part it out please let me know, so I can make the notation.
--Dwight
|