Osborne American "Toy Watercolor Set No. 24", Manufactured by Lewis Haehnlen. c. 1860sI've always got an eye out for antique watercolor sets, so lovely and special feeling (and usable still), though they've become so precious they're pretty hard to come by, American sets most of all. This "toy" set with mini paint blocks with was made by Osborne, one of the few 19th century American makers of artists paint, earning renown for especially vivid colors believed by artists to be equal or better to any made in Europe at the time. It dates