Historical Postcard Splashed White Foal

I've always thought this foal was really cool and apparently the photographer, Ruthvan Morrow, did too. Mare and foal appeared on three different postcards that were sold on Chincoteague years ago. Sketches of them also appeared on things like banners and plates.

The filly's? bald face and high whites look a whole lot like splashed white. Is a great example of very typical splashed white markings. Can't really tell if the foal has blue eyes or not. The colors of the postcard are a bit funky but the foal is looks baby chestnut colored. It has a prominent dorsal stripe. So the foal likely had nd1 which produces non-dun primitive markings like that.