Ordinary Bracelets; Interesting Mark?

[silverly]

Just a couple of fairly common looking bracelets here with a mark that looked sort of interesting. As a guess, the mark may be Italian. It looks like AcK or maybe AKc for AK Co. Does anyone recognize it?

[silverly]

I received a private message concerning this item, but at this point I do not know how to reply to it. So I can only say thank you.
When I learn anything about this specific mark, I will share it happily.