Lancaster Antiques has dated this piece to the Victorian era.
The wings and heads are a darker brass as are the two lamp holders.

Each dragon holds a large glass drop, and the pair of pinky/orange shades are early 20thC and included in the price.
The light is approx 36cm in width and 39cm in length from the ceiling fitting down.
This was recently rewired for the UK market.
Lancaster Antiques has dated this piece to the Victorian era.
You can view the stock and full dealer information on the Lancaster Antiques Profile Page