Kontrast Antiques has dated these Howard and Sons Armchairs to the 1860s.

Good early examples. English c1860
82cm wide x 89cm deep x 70cm high
33cm seat height, 45cm seat width, 57cm seat depth.
one has a 3cm wider seat, 2cm deeper Seat, and is 2cm taller
otherwise the dimensions match within 1cm.
Kontrast Antiques has dated these Howard and Sons Armchairs to the 1860s.
Here at kontrast.antiques, we mainly concentrate on antique english country house sofas & armchairs. Especially howard & sons seating.
You can view the stock and full dealer information on the Kontrast Antiques Profile Page