It occurs to me, as I study this image, that I grew up in a house with a black globe. Sure, a globe is a map of earth, not a portrait. Realism isn’t required. But, those inky oceans made for a pretty dour portrayal of the planet.
On the other hand, this cheerful vintage model makes me want to plunge right into the clear blue sea of 1950! The sun is shining and the water looks fine.