Lancaster Antiques has dated this piece to the 1920s.
The bell is approximately 23cm in height without the rope and has a 20cm in diameter open end. The rope hangs 31cm outside.

The bell weighs approximately 2.8kgs and has been hand polished. There are no signs of damage anywhere just a small scratch on the top- see photo 2.
Lancaster Antiques has dated this piece to the 1920s.
You can view the stock and full dealer information on the Lancaster Antiques Profile Page