Karel Vitezslav Masek ( 1865 - 1927 ) was a Czech painter. Karel Vitezslav Masek s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4639.86 USD for WELCOMING THE RAINBOW in 2005 to 6418 USD for THE SIESTA in 2009 , based on the size and medium of the artwork.