Gabriella Rainer Istvanffy ( 1877 - 1964 ) was a Hungarian painter. Gabriella Rainer Istvanffy s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 211.51 USD for On the lookout; and Ready for play in 2003 to 2125 USD for Terrier Mother and Puppy in 2008 , based on the size and medium of the artwork.