Kingsdown Antiques has dated this piece to the 1880s.
The rear of the gong is stamped for the English Registration Mark beginning 126, for the year 1889.

Dinner gongs such as this were once a feature of grand dining rooms, used to summon guests and household members to the table. Today, it remains both a functional piece and a decorative object, ideal for display on a sideboard, in a hallway, or as a charming conversation piece in any period interior.

Measurements:
Height: 14 1/2" (approx. 37cm)
Width: 14 1/2" (approx. 37cm)
Diameter of Gong: 7" (approx. 18cm)
Total weight: 1450g
In good condition – Good antique condition with age-related surface wear and patina. The gong and striker are fully functional.
Kingsdown Antiques has dated this piece to the 1880s.
Trustworthy reliable professional. Free UK & worldwide shipping
You can view the stock and full dealer information on the Kingsdown Antiques Profile Page