The Fancy Fox has dated this piece to the 1920s.
Hallmarked for Birmingham 1919, makers A & J Zimmerman Ltd.

It measures 6.3cm (2 1/2") wide and 3.2cm (1 1/4") high and weighs 52g / 1.7 troy ounces.
In very good condition, the silver has only minor signs of age and use but with fractional distortion to the lower rim edge which isn't discernible unless viewed from below and the circular box itself is fine. The maker's mark is partially rubbed. The silk interior is frayed in the centre and the leather base shows expected signs of age.
The Fancy Fox has dated this piece to the 1920s.
Offering fine porcelain and pottery, 18th century and later, silver, glass and other small attractive pieces
You can view the stock and full dealer information on the The Fancy Fox Profile Page