Two Italian pietra dura plaques i) mountain and lake scene signed LR B Lastrucci, with retailers label verso Gina Contini Florence 19 x 14.7 cm (plaque image size) note Bruno Lastrucci is considered one of today's masters of Florentine mosaic Art ii) mountain and cottage scene, with retailers label verso Gina Contini Florence 15.5 x 19.5 cm (plaque image size) note pietra dura is a inlay technique of using cut and fitted highly polished coloured stones to create images.