Unmarked Sterling Pin

Bought this pin in a barn sale along with other things. Measures 2" x 1 1/2". No marks. The front looks gold washed and the back has a very old style closure and has a sterling look. Any idea on age?

 

It is Biedermeier, mid-19th century. Very sweet and still in good condition. The hook could have been replaced, but still 19th century.

 

Thank you Any. Is Biedermeier a brand?

 

Biedermeier is a style and period, mostly in the German speaking world.

https://en.wikipedia.org/wiki/Biedermeier

 

It looks hollow. A lot of pins in that style were made of a front and back. Probably gold-filled.

 

Yes, it is hollow. Precious metals were much more expensive at the time, this was before the large scale mining of gold, and even of silver.
It isn't gold-filled, but it is gilded. Probably gilded silver.

 

Thanks for all the help Any and Evelyb.