Amor mit dem Bogen des Herkules : Marmorstatue im Museum zu Berlin
An 1867 Berlin monograph by Karl Friederichs, published by the Archäologische Gesellschaft, studying a marble statue of Amor with a bow in the Königliche Museen collection, aimed at archaeologists and scholars of classical sculpture. The first plate shows the nude winged Cupid leaning on a bow and tree stump in a crisp pencil-like tonal rendering, while the second shows small oval medallion sketches of winged figures, useful for designers studying classical figure poses, outline drawing, and oval cameo framing.

