Qian Daxin ( 1728 - 1804 ) was a painter. Qian Daxin s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 7500 USD for CLERICAL SCRIPT CALLIGRAPHY in 2011 to 42586.28 USD for SEVEN CHARACTER COUPLET IN CLERICAL SCRIPT in 2013 , based on the size and medium of the artwork.