The image showcases an exquisite example of decorative stencil ornament in the Art Nouveau style. This is not a facade in the traditional sense, but rather a decorative border or frieze executed in stencil technique with a characteristic green color on a light background.
The composition features complex floral patterns with symmetrical elements typical of the Art Nouveau style from the early 20th century. The design is dominated by flowing, curved lines and stylized botanical motifs, including floral elements and leaves. The central part of the pattern is more densely detailed, creating a rhythmic composition that repeats horizontally.
The execution technique involves the use of cut templates (stencils) through which paint was applied, which was a typical method for decorating interiors during the Art Nouveau period. Such ornaments were often used to adorn the upper parts of walls, ceiling borders, or friezes in the interiors of public buildings and private residences of that era.