A mahogany ‘comb back’ Windsor armchair

A mahogany 'comb back' Windsor armchair, probably American, late 18th/early 19th century, the shaped cresting rail incorporating twin scroll carved terminals, the comb back above a hooped arm rail and dished solid seat, on turned tapering legs with an H shaped and rear stretcher, 103cm high, 62cm wide, 52cm deep
Several key features of this chair including the distinctive scrolls to the top rail of the back, and the legs, relate to those made in Philadelphia during the second half of the eighteenth century.