Mother of pearl & Ivory Your piano is a Rittmüller upright, marked “Gegr. 1795” (“Founded 1795”). Although the brand traces its heritage to the 18th century, the instrument you own appears to be from the early 1900s, most likely between 1900–1930. ✨ Why this particular piece stands out: You have a rare Art Deco / Art Nouveau marquetry model, which is not common at all. The inlay panels on the upper front and the sides — showing stylized figures, leaves, instruments — were hand-applied wood marquetry, a technique used only on high-end decorative uprights. This kind of decor elevates it beyond a standard upright and makes it a collectible object, even if the internal piano mechanics need restoration.