Sir Peter Markham Scott ( 1909 - 1989 ) was a painter. Sir Peter Markham Scott s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3740 USD for Green-winged teal flying over marshes with a rainbow in 2010 to 77268 USD for Mallard and teal in flight in 2010 , based on the size and medium of the artwork.