The Talking Machine Forum — For All Antique Phonographs & Recordings

I'm planning on recovering a Decca Junior. I've stripped the original Rexine and made a template.
My question is how do you scribe the patterns in the Rexine. I've also seen Rexine somehow etched with intricate patterns. I want to know how to etch, press or scribe lines into the Rexine. The material I am using is called Arbetex.
Thanks.