Asian Hallmark?

[treestump]

Hi this is the marking on the bail of my locket, i do not understand it and was hoping for some help, someone suggested to me it may be Asian.

Thank you very much for your time and interest.

[treestump]

Hi this is my locket and it was suggested by someone this could be an asian hallmark? I have never seen a marking like this before and am really struggling to find out what it means.

Thank you for your interest / help.