Looking for something similar to this Altec grill fabric

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I'm attempting to track down grille fabric with a similar texture to the cloth on this Altec 1234 cover: https://reverb.com/item/19537308-vi...t-grille-original-grill-screen-cover-w-mounts

This stuff seems like an OK match but I have to wonder if there's something better that I'm not finding.

Is the cloth on the 1234 made from cane? or wool?

Thanks for any help!