Possibly for an officers dress uniform, i do not know to much about British patches but i have dealt in US Patch's. Most of the Bullion gold on black patches were on officers uniforms, or privately commissioned by soldiers. Hope that helps a little !
They all look very dark blue on my screen and I would assume they are for the No.1 Blues uniform.
Whatever its just an opinion.
"War is an ugly thing, but not the ugliest of things. A man who has nothing for which he is willing to fight, nothing he cares more about than his own personal safety, is a miserable creature with no chance of being free unless made and kept so by the exertions of better men than himself."
They could well be dark blue, I am quite colorblind so hey. Cheers and thanks for the help! I will post a few more badges up soon.