This is a beautiful sheet of 4 stamps, issued by Comoros in 2009, illustrating the artwork of famous American Impressionism painter William Merritt Chase. Featured famous paintings shown include "In The Studio", "Portrait of Miss Dora Wheeler", "Peonies", "Self-Portrait", "At The Seaside", "Boat House Prospect Park", "The Blue Kimono", "The Fairy Tale (A Summer Day)", "Did You Speak To Me", "Girl In A Japanese Kimono", "Mrs. Chase In Prospect Park", and "Alice Dieudonnee". The sheet is Michel #2564-2567, and is Post Office fresh, mint never hinged, and F/VF.