Dials are the display faces of clocks, watches, barometers and scientific instruments, marked with numerals, graduations or scales to indicate measurements. Antique dials were commonly produced in painted metal, enamel, brass, silvered brass or porcelain and often featured decorative engraving, maker\'s names or hand-painted ornamentation. The design and construction of a dial can provide valuable information about an instrument\'s age, origin and maker. Related Terms\ Barometer, Clock Dial, Enamel Dial, Longcase Clock, Watch Dial.