Retro 1960s vintage replacement fiberglass torpedo or bullet shade head for a desk or bed lamp. The fiberglass shade is a yellow-green color and the lamp socket is missing the inner shell (probably cardboard originally). The shade measures about 5" across and 7" long, but the end is angled and so it is a little longer on one side and a little shorter on the other. There is a pigtail of wiring.
There is some light wear and scratch near the edge of the shade.