In regards to Brian's find...I can tell the following about it.
One of the rarest pieces of Shelby related literature, as many know, is the original 1965 GT350 owners manual. That owners manual is distinct from reproductions in that the front and back covers fold out like a centerfold..none of the repops had that feature.
On the back cover, the "fold out" was perforated and was a Shelby GT Club sign up slip meant to be ripped off, filled out, and sent back to Shelby American after you had bought your 65 for inclusion in this club. The club was supposed to be run by Shelby American but, to my knowledge, the club never actually materialized. Today, when you find an original 65 manual, they more often than not have that back cover ripped off because it was likely sent in to SAI while the front fold out is still there since it was not perforated and not meant to be sent in for anything.
WHile the club never seemed to really function, I have on two occasions managed to buy a "Shelby GT Club" square decal. These were just like the badge that Brian posted but the CS and script was white and the background was dark blue.
What Brian seems to have found is a name badge which was produced for the club which somehow found its way out of the factory. Perhaps some people were actually sent club materials but it didnt function long? I dont know what the story is entirely as its merely a small footnote in the story of Shelby American.
In my 15 years of hounding this stuff, ive never seen or heard of another but perhaps someone else has? Regardless, it is a horrendously rare and certainly an amazing find!
Kind regards,
Vern