Amsterdam School wall sconce

This wall sconce has a fantastic design in the Amsterdam School style.
The Amsterdam School style is a mixture of Art Nouveau and Art Deco.
To make this lamp requires complicated techniques.
Such as bending the double-layered glass and then firing the colors onto the glass.
De Nieuwe Honsel has the most prominent reputation for producing lights like this.
The firm started circa 1923 and continued with production until 1932.
There is another wall sconce in my collection for sale, so making a pair is possible.
The sconce was made around 1925.
The length of the light is ca. 38 cm.