Fresh Eggs, Winslow Homer; watercolor and gouache on paper; roughly 9 x 8 inches (24 x 19 cm). Original is in the collection of the National Gallery of Art, DC, which has both zoomable and downloadable images on their site.
In this simple, unassuming study of a commonplace chore, Homer shows us the ability of art to elevate the ordinary into the extraordinary, as well as demonstrating his apparently effortless command of watercolor and gouache.
The NGA provides a nicely high-resolution image (higher than in my detail crops) in which you can see his individual brush marks and the way he has mixed opaque and transparent passages with economy and flair.