Can anyone read this Hallmark??

[twingall1]

I bought these at a store in london.. I think they are gold framed but i can't be sure of the hall mark: "??10Ct" - 10 Ct gold?

Anyway, it is gold for sure: i acid tested the frames. But i would really like to know what the marking is supposed to say.

Thanks,

http://i.imgur.com/spo7f.jpg
(admin photo edit - images too large - link only - see Posting Requirements )


Tom