Jeff Sims Antiques has dated this piece to the 1920s.
The body is tapering and decorated with flowers. Whistles in hallmarked silver are always in demand and a decorative and usable example is a good find. Dimensions below.

Postage and packing £8.00 UK
£16.00 Worldwide.
Condition :- Good, with no splits or holes. There is a pinprick dimple commensurate with age and use. The whistle works well.
Hallmarks :- Clear and readable.
Date :- Chester 1921.
Maker :- Charles Horner.
Length :- 3.8 cms.
Width :- 1.5 cms. (widest point).
Depth :- 1 cm.
Jeff Sims Antiques has dated this piece to the 1920s.
Specialists in antique silver, glassware and objects of vertu
You can view the stock and full dealer information on the Jeff Sims Antiques Profile Page