18kt rose gold and silver Victorian portrait brooch , 19th Century

Brooch in 18 kt pink gold and silver (owl and swan hallmark) adorned with a miniature representing a woman in the style of the 18th Century, in an entourage of fine half-pearls. Original glass replaced by plexiglass. Metal pin. 19th century work. Gross weight: 9.60g Height: 4.00cm Condition: slight micro scratches on the metal parts and the plexiglass, traces of humidity on the left side of the miniature, see photos.