This is a drawing of pocket watch components. It shows a detailed illustration of a pocket watch mechanism and its ornate back cover. The left side features the pocket watch's inner mechanics, showcasing gears and other intricate parts, accompanied by the label "E. Howard & Co., Boston" and the number "41666." The right side displays the decorative design of the watch's back cover, showing an intricate pattern with swirling motifs and a central floral element. The drawing includes an outline of the pocket watch's side profile, labeled "Interior" and "Exterior Front Side." The image emphasizes the functional and aesthetic aspects of an elaborately designed timepiece.