Roughly what does the shape of the case look like? Looks like a little house with animal carvings, usually with pinecone shaped weights hanging from chains Octagon top with a box or drop section below the dial Long case with a swinging pendulum visible through glass, often says Regulator on glass Banjo shape (round dial, narrow waist, larger box at the bottom) Round clock with no visible pendulum Ornate clock with a highly decorative gilt or carved case
