Aramis Antiques has dated this piece to the 1920s.

The silver top is inset with guilloche enamel in a bright lustrous royal blue. The enamel is in perfect condition. The top is screw on. The glass bottle is 6 sided and made of thick glass so that each corner reflects the depth. The bottle is cut with two bands of reeding just above the base and at waist level. The base is plain. The bottle has its original perfectly fitting stopper.
A stunning quite large piece of enamel work in a stunning colour.
Aramis Antiques has dated this piece to the 1920s.
You can view the stock and full dealer information on the Aramis Antiques Profile Page