Does this help at all? From true Jacobean period furniture:
In the early Jacobean period, chairs were comparatively scarce, stools and forms being in more general use. These early chairs usually had arms and were seats of great dignity. Both chairs and settles had high seats and usually heavy stretchers between the legs. Chair seats were square or almost so and chair-backs were high and perpendicular or so nearly perpendicular that the rake was scarcely perceptible. The triangular seated and heavily turned chairs, whose pattern had been brought to England, probably by the Normans, were met with but were survivals in type.
The characteristic chair of this date was the wainscot or panelled back chair (Key I, 1). These chairs probably owed their inspiration in the first instance to choir stalls. In Elizabethan chairs of this pattern, the top rail bearing the cresting is within the uprights of the back. In Jacobean chairs the top rail caps the uprights and is part of the cresting. These wainscot chairs continued to be made long after the Restoration. Seats were made high with the express expectation of using either the stretcher or a footstool. There were also occasionally to be found X-shaped chairs pretty well covered with upholstery, but these occurred in the earliest Jacobean days and were so scarce that we can afford to pass them without further mention.
