Gene, I don't doubt your source. That J-in-diamond just seems to be attributed to two different locations. Maybe the original chip shipment was broken up into parts, one for the advertising firm, one to Jack's Place; or the chips were used, at different times, for different purposes at distant locations. I have seen that before.

Thanks for your research and information, I guess I'll note both on the notes for my chip. For I too purchased a J-in-diamond at the show.