The image showcases an exquisite example of architectural decoration in the Neoclassical or Beaux-Arts style. We are looking at a facade element, specifically a keystone of an arch, richly adorned with carved ornamental details. The central feature of the composition is a decorative anchor wrapped in a garland or wreath, likely referencing a maritime or naval theme of the building.
On both sides of the central element are elegant palmettes - stylized fan-shaped plant motifs characteristic of classical architecture. The ornamental decoration is skillfully carved from light-colored stone (possibly limestone or sandstone) and demonstrates the high craftsmanship of the stonemasons.
In addition to the anchor and palmettes, various decorative elements are present: pearl beading, diamond-shaped patterns, festoons, and volutes. This entire composition serves not only decorative purposes but also emphasizes the structural significance of the keystone in the arch system. Such attention to detail and their symbolic meaning is typical of representative architecture from the late 19th to early 20th century.