Disc musical box is in oval barrel shaped wooden case in metal hoops, mounted on trestles with carved supports. Sculptural figure of a fabulous beer king Gambrinus in green suit and ermine mantle, fastened by goldish clasp, with crown on his head with; a jug in his left hand and a tankard with beer foam in his right hand. Button for activating the musical movement is on the right lateral surface, winding crank with black handle is on the left one. Metal onlay with hinge is on the front side top; a door with lock and key is on the rear side. Musical movement is mounted behind the door, on goldish color rectangular chassis with floral embossed ornament and inscription on the plate: “REUGE MUSIC”, “SAINTE-CROIX SWITZERLAND”. The musical movement consists of sound comb and a set of stars wheels, designed to transfer effort from a pin of the pinned disk to a tooth on the sound comb, vertical bar with clamping rollers and supporting the disk roller. The speed control is below. Pinned disc made of thin steel sheet by presswork with three round apertures in the center is mounted on chassis. Notched apertures and inscription with the tune title “RIGOLETTO QUARTET” and indication arrow are on the front surface. Rods made by partial notching and flexion are on the on operating surface. Their location determines a melody to play.

When the spring is winded and the button is pushed, the disc rotates, the pins touch the corresponding stars- wheels, which, in turn touch the teeth of the sound comb and the melody sounds. When the melody is finished, the disc stops automatically. Pinned disc and key are in the set.

The melody of the quartet ("Bella, figlia dell'amore" - "Oh, young beauty") from the opera "Rigoletto" by the Italian composer Giuseppe Verdi (10.10.1913-27.01.1901), written in 1850-1851 and first performed on March 11, 1851 in La Fenice in Venice is encoded on the pinned disc.

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