Alan Caswell Collier ( 1911 - 1990 ) was a Canadian painter. Alan Caswell Collier s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1680.67 USD for LABRADOR ICEBERG in 2004 to 21850 USD for LAND OF LONG WINTER in 2006 , based on the size and medium of the artwork.