A very unusual and tiny Art Deco sub-miniature carriage clock in light blue guilloche enamel and silver. Superb enamel on all sides bar the back door. The dial in an unusual triangular shape leading to a tiny minute hand. 8 day three quarter plate movement with lever escapement. Fully marked on the case and numbered. Made in Germany circa 1925. 1.5 inches high by 1 inch wide by .75 inch deep ( 3.75 cms by 2.5 cms by 1.87 cms).