Yang Yisun ( 1813 - 1881 ) was a painter. Yang Yisun s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2469.22 USD for CALLIGRAPHY IN SEAL SCRIPT in 2013 to a remarkable record 30901.16 USD for CALLIGRAPHY in 2016 , based on the size and medium of the artwork.