Somebody went over the grooves with a gold pen, but they were so inept that the gold doesn't match up with the letters. And they couldn't quite do the R. Remember what your second grade teacher told you about using crayons? Yeah, and you thought the advice was null and void after graduation day?

Ruined a perfectly bad chip. Oh, and the attribution is more likely "Sacramento."

EXREX. Not to be confused with XEROX or EXXON, which would likely have better chips!

As XERXES would have said: "Phooey!"