Thank you for the reply's. I'm stickin' to Christensen Striped Opaque. I have lots of Masters,( meteors,sunbursts) And Akro's. Lots of research data and pic's tell me its a Christensen. Don't mean to disagree with you. Hope you can keep on helping me with all the marbles I have. Sending some more pic's,maybe better ones of same marble. The black is not a "patch." Thanks,Judy