[Nathan Slingerland]

For reference, here is a photo from an auction that I believe has the original cloth:

   

This was the image from the sales catalog:

   

Kind of an odd one. I hate to say it but maybe the 'Zenith Gold Block' pattern from Richmond Designs?

http://www.richmonddesignsinc.com/grille...oduct_page

Radio Daze also has something similar:

http://www.radiodaze.com/grille-cloth-21-item-grc21/

(And now I'd better hide to avoid any rotten tomatoes thrown my direction.  )