Woodbridge Antiques has dated this piece to the 1920s.

The striker is a clear threaded glass is in great condition. (A few tiny nibbles can be felt when running one's finger over the glass not visible to the naked eye and mentioned for accuracy only.)
Unusual in size, a rare piece for a collector!
Hallmarks and maker's marks: London 1927 by Harrods Ltd
Measurements:
Height: 6.4 cm
Diameter width 7.8 cm
Weight: 525 grams
Weights and measurements are approximate.
Woodbridge Antiques has dated this piece to the 1920s.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page