Antique colonial chairs & settees

A pair of Portuguese colonial rosewood folding chairs. Each chair is composed of three components joined with steel screws; the back, the seat, and arms, each extends down to form one of the three pairs of legs. 
The back is concave with a carved pierced crest rail in foliate design and a central caned panel. The seat is caned. The shaped arms end in a carved animal head and are secured with hinges to the arm support.