Ivo Pannaggi ( 1901 - 1981 ) was an Italian painter. Ivo Pannaggi s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 372.38 USD for IL PENSATORE, 1924 in 2007 to 24891.17 USD for I Costruttori in 2013 , based on the size and medium of the artwork.