Hi folks, I wonder if you can help me identify the weave in this fabric. It's the grille cloth from a set of 1970s stereo speakers. I actually have several matching pairs I'm restoring and one has had its cloth replaced with something different. To have any hope of finding something similar, I need to know what you call it.

Here is a closeup pic showing a pattern oriented 45 degrees to the edges (unless they cut the fabric at an angle in the first place). The second pic is looking through it to the sun reflecting off the hood of my car. Just so you know there are no trees in the fabric. :-D