画上的钟, 带滚筒音乐盒装置, 巴黎Xavier Tharin制造, 约1870年

Hand-colored lithographed scene depicting monkey music master and his two simian students playing violins, with two-train clock movement, enameled 1 ¼-inch (3,5 cm) Roman dial signed "H. M. Walton, Paris", matching signature on movement, four-air cartel cylinder movement No. 5041 stamped "Nicole à Genève" and going-barrel automaton movement controlling ten movements: monkey gentleman nods his head, taps his foot, bows and plucks the neck of the instrument with his fingers, monkey lady bows, music master directs and opens his mouth as though singing. With printed inscription in lower-right corner: "C. H. Riviere d'après Decamps, 1844", in elaborate giltwood frame, 27 in. (69 cm) x 22 ½ in. (57 cm), one tooth off cylinder movement. – A handsome and amusing mechanical picture!