The Real Wood Furniture Company has dated these Antique Yew Windsor Armchairs to the 1880s.

Width: 66cms (26")
Depth: 62cms (24.5")
Height: 113-115cms (44.5"-45.25")
Seat height: 44-46cms (17.25"-18")
Between arm supports: 39-40cms (15.25"-15.75")
Seat depth, from bottom of splat to front edge of seat: 45cms (17.75")
The Real Wood Furniture Company has dated these Antique Yew Windsor Armchairs to the 1880s.
The real wood furniture company (chris baylis) sells windsor chairs, decorative furniture and objects from large showrooms in the cotswolds
You can view the stock and full dealer information on the The Real Wood Furniture Company Profile Page