Antique mirror clocks are an attractive design that features a split column frame and a mirror in the lower tablet. Often called "New Hampshire Mirror clocks", this popular form was primarily produced in that state during the 1820's & 30's. 

Due to their fragile nature, antique mirror clocks are another form that is prone to have restoration to the glasses, with few examples surviving in original condition. Examples continued to be produced in New York and Connecticut until the middle part of the 19th Century.