A Dutch diamond-engraved light baluster wine glass, circa 1750-70

A Dutch diamond-engraved light baluster wine glass, circa 1750-70
The rounded funnel bowl engraved with a milking scene, one milkmaid kneeling beside a cow and another standing by a milk churn, the reverse with a spreading leafy tree, a banderol above inscribed OMNIGENOS, FRUCTUS ERRA LABORE, FERRET, on a multi-knopped stem containing tears, the conical foot also diamond-engraved with fruiting vine branches, 18.2cm high