Picture frame (4) - Italian stone micro mosaic

Set of 4 antique photo holders from the 1920s/1930s in micro-mosaic of stone and copper, provenance Italy, in good condition with a very small defect for some; the hallway one is black with a photo of a lady in very good condition; the second with flowers, glass missing and back in metal missing, stones in good condition; the third with a view of Venice, in good complete condition; the fourth, smaller, in good condition, missing the metal stand to place it. Stone in good condition. They will be well packed and insured.