My point is, this seems to be an effort to put a name to initial chips.
If Borland made them for Konami, it would have been pre 1992 or 3. Why would a Japanese Co come to a one horse little distributor in LV to make chips?
If they were made pre Borland By Bud Jones, they would pre date 1983.
Konami will probably be at the gaming show in Sept. Show them one. My guess is they will look at them and laugh.