Oswald Wenckebach ( 1895 - 1962 ) was a Dutch painter. Oswald Wenckebach s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 261.52 USD for Een duinlandschap met uitzicht op zee in 2004 to 6555.33 USD for Michelangelo B in 2006 , based on the size and medium of the artwork.