THIS is the stuff I want to know about, if and when anyone gets any great ideas or leads. Can anyone say when this was used? I'm thinking pre-'68-'69 maybe, somewhere around there? And was there anything before this?
I'm pretty sure everyone here knows what cloth you are talking about, almost all of us have mid 60's Sunn gear that need cloth and it's been a common source of discussion/debate here for a decade or more.
Sunn only used two types of grill cloth, what you pictured was used up until '69. The later stuff is available, the early stuff has so far been impossible to obtain, and
that's the grill cloth that we have been discussing.
Both Loudthud, myself and now bigobassman have spoken directly with the OEM manufacturer to no avail. In my case at least, even bribery was tried; no dice for some government regulatory issue.
Hopefully Biggo's face to face will have some success!