Guariento d'Arpo (1310-1370)-mannerGuariento d'Arpo (1310-1370)-manner, Triptych with three painted wooden panels, in the centre Madonna with child flanked by St Michael and another saint; tempera on gold ground panel; in wooden carved and gilded frame in Sienese style with open work and turned columns; on the bottom described; damages, parts missing.50x70cm