Ridley Yngvar Borchgrevink ( 1898 - 1981 ) was a Norwegian painter. Ridley Yngvar Borchgrevink s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 378 USD for Sovende jakthund 1961 in 2004 to 34493.57 USD for Hester i fart in 2006 , based on the size and medium of the artwork.