Coming up at Jenack's Feb. 21 auction in Chester, New York, are two marine-themed watercolors by impressionist John Whorf (Massachusetts/California, 1903-1959). In The Sand Dunes, Provincetown, Mass., dated 1954, is estimated at $3,000-$5,000. The other work, Mediterranean Fishermen, is a vibrant scene showcasing Whorf's talent for depicting sunlight glistening on water and wind gently billowing a sail (est. $4,000-$6,000).