Valentine Delawarr ( 1890 - 1898 ) was an Australian painter. Valentine Delawarr s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 400.76 USD for The mouth of the Hawkesbury river from Long Island in 2004 to 3219.34 USD for RIVER CAMP in 2009 , based on the size and medium of the artwork.