Fillegree brooch. Need help to ID country, age, maker.

[vasyapupkin0]

I have a question for you, experts. I can't precisely identify the origin and date range of this pin/brooch. Possibly Norwegian. Stamped "830" then "S" followed by a ")0("-looking symbol (it may also resemble a left-facing crescent moon and a right-facing crescent moon joined together by an vertical oval; or it may appear as a butterfly-like symbol).
http://www.flickr.com/photos/22170701@N03/
Any help would be much appreciated. Many thanks in advance.

[vasyapupkin0]

Just added one more closeup of the marks.

[rachelw]

well it's definatley Norwegian - it's a "solje" which is part of Norwegian traditional dress.

don't know the maker though

[vasyapupkin0]

Thanks so much for confirming! I'll be listing another odd silver marked piece in the European Silver, Other Countries section.