Banister post, Huis De Lange, Alkmaar 

"Banister post, Huis De Lange, Alkmaar" is a three-dimensional work by Dutch artist Theo van Doesburg, who is known for his contributions to De Stijl, a movement that emphasized geometric abstraction and primary colors. The sculpture is a prime example of his geometric style, featuring a minimalist, geometric form and simplistic features, and highlights the movement's emphasis on functionality. It was originally a part of a house designed by the artist. The geometric sculpture is constructed from wood and utilizes an array of rectangles to form the structure. The sculpture is a striking example of van Doesburg's artistic vision and his exploration of abstraction within the realm of architecture and design.