P.V.C. strip sphere
While object 50, and object 54, for instance, use their mass and material presence to describe spheres, this object, along with object 5, use translucency, lightness, and reflectivity to find other more diagrammatic representations.
The “north to south” axis is 4mm threaded rod, while the central “equatorial” plane is a circle of 2mm clear acrylic.
See also object 5, object 15.