This is a lovely antique little box.
This is a "vinaigrette".
Gilt sterling silver.
Birmingham, letter date: 1835
Dimensions: 2,9 x 2 cm
Deepth: 0,9 cm
Weight: 10 grammes
Date: 1835
Inside lid is missing:
Antique !
Here is a converter inches / cm to help you with the dimensions: