The Nelson Ball Tripod Lamp by Herman Miller are considered icons of mid-century modern design since their introduction in 1952, featuring the famed spray-coated plastic material that hugs a steel wire frame. The Nelson Ball Tripod Lamp is a globular shade with a Brushed Nickel tripod base, and is beautiful when the fixture is lit or unlit. The Bubble Lamps are so emblematic of mid-century modern design that they reside in the permanent collection of the MoMA in New York.