Mid century mirror?

Hi everyone, I recently bought this small mirror. It was sold as brass and mid century with an oak backing. It would be great to hear peoples' thoughts on what the style could be described as and an approximate age.
Thanks!

 

Id guess more 1930s. Pretty thing,I bet it weighs a ton.

 

Agreedm it's 20s or 30s.

 

Thanks for your insight!

 

Thank you

 

Do you have any ideas about what style of pattern this would be?

 

Question or two. You sound certain it's brass. Only reason I interject that is we had a mirror, round, but same type of design around the edges....everybody thought brass until it got a light ding on the edge one day.
Some kind of brass coloured spray over cast plaster.

I see the back edge showing around the wood back....doesn't look brass.
Unless it's taken on linoleum and cropped. Hard to tell.

Our mirror was at least 1940's if not 1930's.