It took a significant amount of polish and elbow grease to make the brass look more shiny as you see. What's more, a layer of oil varnish covers the brass surface which will protect the brass from rusting and also can extend the life of the item for a long time. As time goes by, the color of brass will look better and better.

https://vakkerlight.com/collections/wall-lamp/products/leclerc-sconce 

Dimensions: 25.2 x 9.2 x 25 (cm)