Giovanni Maria Cassini ( 1745 - 1824 ) was an Italian painter. Giovanni Maria Cassini s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1985.6 USD for CARTA GENERALE DELL`ITALIA DIVISA NE` SUOI STATI E PROVINCIE. ROMA: CALCOGRAFIA CAMERALE in 2004 to 2184.16 USD for CARTA GENERALE DELL`ITALIA DIVISA NE` SUOI STATI E PROVINCIE. ROM