Leeds Antiques has dated this piece to the 1870s.
The top extends by way of double screw winding mechanism, with original handle, and two additional leaves.

Comfortably seating 10, or 12 at a push.
A charming, quality, original dining table, well presented and full of character. In good working condition, and ready for use.
Dimensions:
This table measures approximately 75.5 cm (29.75") tall, 282.5 cm (9', 3.25") long extended, 159.5 cm (63") long unextended, and 133.5 cm (52.5") wide. The additional leaves measures 66 cm (26") and 63 cm (25") wide.

Condition:
Please see the pictures for details of the items condition. - This table is in good original condition, commensurate with its age, and is structurally very sound and sturdy. There are some marks and blemishes. There is some fading and aged usage marks, namely to the top, which provides a warming charm. The additional leaves have a very slight warp, and doesn't affect the table in any way. A few historic extinct worm holes to the secondary ash timbers, which by way of precaution have all been treated and do not affect the sturdiness of the table. Original throughout, including the polish. No signs of repair or significant damage. The mechanism and castors all work well. Ready for use. - As with all vintage & antique furniture there will be signs of use, marks, wear & tear, etc.
Leeds Antiques has dated this piece to the 1870s.
Second-generation antique dealer specialising in carefully sourced 17th–20th-century furniture and décor, chosen for quality and character.
You can view the stock and full dealer information on the Leeds Antiques Profile Page