This is a beautiful stamp souvenir sheet, issued by Comoros in 2009, illustrating the artwork of famous American Impressionist painter Childe Hassam. Featured famous paintings shown include "Apple Trees in Bloom" and "Le Jour du Grand Prix", among others, along with a brief written biography of the artist. The sheet is Michel #2598 / Bl.537, and is Post Office fresh, mint never hinged, and F/VF.