Seth Thomas "Rex" adamantine mantel clock, est. circa 1915.
Eight-day Seth Thomas movement has the Seth Thomas maker's stamp on the brass plate. Strikes on a coiled gong in the bottom of the case. Brass "89" movement has a four brass and one steel pillar. Half-deadbeat escapement. Adamantine case is a bit worse for wear, and the silvered face has some scratches. The movemernt required three bushings and a main spring and is now in fine running condition.