Registry Project.

While sorely out of date, still a nice read and did record the existence of a lot of numbers.

Still only 1 matched serial number set known: 0001.

Link is below, however, the story needs a correction. I now believe that it was chip dealers that created the framed, 4-plaque sets. As opposed to being done by the Sahara as a gift to Executives.

http://www.thechipgallery.com/plaque.htm

Jim