Miniature painting on oval porcelain plate around 1890

Antique miniature painting on oval porcelain plate; around 1890; detailed brushstroke with gold painting, magnifying glass, motif: portrait of a woman,  Biedermeier style - it could have been the owner at that time; probable from a brooch (made for jewelry production); partly slight abrasion; traces of use according to age; Dimensions: approx.2.5 x 5 cm