Hi Katana,
regarding the foil (the saber is not that interesting
):
Like broadaxe I have no idea which forge might use "CG" under a crown but it was not uncommon to use foils as a substitute for duelling epees. In fact this habit was critisised by contemporary sources (e.g. G. Hergsell in his "Duell-Codex").
Nevertheless: If you could try to get a decent picture I would try to find out more on the weapon.
All the best
William