This is a lovely antique silver wine taster.
French XVIIIth Century silver marks " fermiers généraux".
A bit difficult to identify.
Inscribed and dated later: JB SAVRON DU GRAND CORMOT 1831.
We can find during the XVIIIth Century a family of SAV(e)RON, winemakers near Nolay, not far from Beaune, Bourgogne.
Dimensions:
Hight: 2,5 cm
Diameter: 8,5 cm
Weight: 114 grammes, rather heavy in hand.
Period: 1760 - 1790 (dated 1831 a bit later).
GOOD GENERAL CONDITION, only a tiny hairline on border.
Here is a converter inches / cm to help you with the dimensions: