Marianus Adrianus Koekkoek ( 1833 - 1904 ) was a Dutch painter. Marianus Adrianus Koekkoek s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 32168.89 USD for FIGURES IN AN EXTENSIVE SUMMER LANDSCAPE in 2005 to 43671.65 USD for AN EXTENSIVE SUMMER LANDSCAPE WITH TRAVELLERS ON A PATH in 2006 , based on the size and medium of the art