Since this thread left the original question and moved to devices used to protect headlamps I created a folder with some images illustrating the wire mesh stone guards that Shelby American used on Cobras themselves and offered in their parts and accessories catalogs. Shelby American sourced them through an accessory specialist company.
Included is a clip showing a No. 106 assembly on CSX2431, the No. 106 set listed in the 1965 Haan catalog, the set listed in the 1965 Shelby catalog, a new old stock package showing maker information, and a picture of provided components.
The mounting tabs were brazed to the round rims before plating and were straight. To make them fit a Cobra's trim ring the tabs must be bent slightly. I added images of a tab as purchased and tabs as bent to work.
I have a set installed on our red car CSX2551, shown here Sept 2017.
No. 106 Stoneguards - Club Cobra Photo Gallery