Wooden mahogany veneered organ case with profiled cornice and lacquered, socle is with paneled front side on four high supports. Detachable panel in the Gothic style with two triangular jagged frames and decorative tubes covered with pink fabric from the inner side is on the case front side. Ledges with carved lancet flutes and finial are on the panel sides, winding crank is to the right, and six (register) sliders with explanatory inscriptions are below. The manufacturer’s nameplate “Clementi & Co” is on the panel. Parallelepiped-shaped drum, triumvir, pinned barrel for ten melodies, wooden rake with brass plate and fifteen, according to the number of basic tones, and two for controlling the drum and triumvir sensitive levers (keys), set of metal and wooden pipes combined into four registers, system of bellows are mounted inside the case. The door, which gives access to the pinned barrel with the sticker on the inner side with the list of melodies on three barrels, is on the left lateral side. Metal sliding bar with handle, which raises and lowers the key frame to the working position, is on the right side. The pinned barrel knife and bolt mechanism is below. When the key frame is raised, the barrel can be fixed in one of ten positions according to the chosen melody. Hinged door with latch, behind which two exchangeable pinned barrels are stored on wooden support, is on the socle left lateral side. When crank is rotated the barrel rotates as well, the bellows are set in motion, forcing air into the wind chest with valves that distribute compressed air between the pipes. Pins and bridges on the pinned barrel raise the keys, which open the valves of the corresponding pipes; air from the wind chest enters the pipes and makes them sound. Sliders make possible switching of the registers and percussion instruments. Three exchangeable barrels and winding crank are in the set. Music media: pinned cylinder.

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