William T. / Henry Walters Collection, Baltimore [date and mode of acquisition unknown]; Walters Art Museum, 1931, by bequest. (open access)
Just goes to show you dogs have been perfecting that derp de derp look for centuries. This particular champ graces a 4th century BC Greek terracotta pyxis, a style of container usually in the form of a round lidded box to hold cosmetics and little things. This box is just over 2" high and just under 3" diameter, a good size for jewelry or moisturizer. The dog is painted in red on a black background - in short, it's a piece of classic Greek red-figure pottery, made for a cheerful daily use.