Prior and Willis has dated this Mahogany Dining Chairs Set to the 19th Century.
Possibly, a smaller set that had extra chairs made to match (not uncommon for hand made chairs, all chairs are 19th Century).

No loose joints or woodworm.
Overall maximum dimensions:
46cmW x 48cmD x 88cmH (43cmH seat when sat on).
In very good antique condition, with minor historic knocks, marks, imperfections repairs and alterations. Historic repairs (all good and strong now) as is to be expected with period functional antique furniture. Historic shrinkage cracking to some seats (as is always the case), but these are all glued, filled and stable.
Please check dimensions before purchasing.
Item reference WNA-7960M11.
30-day, no-quibble, money-back guarantee.
Competitive UK and overseas door to door shipping.
Prior and Willis has dated this Mahogany Dining Chairs Set to the 19th Century.
You can view the stock and full dealer information on the Prior and Willis Profile Page