The guys at SF Association Chapter V could probably provide a source for the silver Trojan Horse crest. Or provide you the status/POC info for the shop (they used to order stuff from there routinely). Garden of Eden Chapter in Stuttgart used to sell the Trojan Horse devices through their SFA Chapter Store. Don't know if they still carry them.
They can probably put you in contact with the guys down at Chapter 65, Bad Tölz (whose link is wonky). Those guys would definitely know if the shop is still open for business or if somebody else is currently making those silver badges:
Chapter V, Boeblingen (Stuttgart) Germany
https://www.facebook.com/sfa.chapterv/
If you aren't looking for original/collectible examples:
Modern reproduction 1-10 SFG(A) flashes:
https://www.popularpatch.com/army-pa...ny-flash-patch
https://www.amazon.com/Special-Force.../dp/B07CN234PD
I've got one of the silver Trojan Horse flash sized devices mounted on a circa 1983 plaque, so I know what you're looking for. Just not sure of where to find one today other than through the Group guys over in Deutschland...
Hope this helps a little bit.
- Dave