European Silver? Initials OMG

[Europa]

I am seeking an identification for what I believe is European Silver. I have a circle pin with the initial OMG and 3 difficult to see marks. the last mark looks like a P. Any information would be greatly appreciated.

[2209patrick]

Ola Gorie located in the Orkney Islands off the north coast of Scotland produced jewelry with an OMG mark.
Began working in the 1960's.

Regards,
Pat.