Made by one of the foremost micro mosaicists, Gioacchino Rinaldi, this “glass painting” composed of approximately 60.000 glass pieces and weighing around 48 kg depicts the most famous temple of Vesta and Sybille at Tivoli dating to the end of the 2nd century BC. This Grand Tour souvenir from Rome certainly was only affordable to a very rich client as the workshop needed about two years for completion. Therefore, the artist proudly signed his work on the bottom right.
G.J. Hanisee Gabriel et al., Micromosaics, The Gilbert Collection, London 2000, p. 289 (with further literature)