This is a drawing of a looking-glass shelf clock. The drawing features detailed front and side elevations of a shelf clock designed in the Chauncey Jerome pattern. The front elevation displays ornate details, such as a circle pattern on the clock face and a decorative mirror below. The top of the clock face is adorned with an intricate design. The side elevation showcases the depth of the clock, highlighting the layered structure and decorative elements along the edge. The drawing is carefully annotated with measurements and labels.