Showcased here is an unpainted Plastic Man first shot. Plastic Man is totally cast in nonproduction colors lending it vast eye appeal. You cannot tell from the picture, but the ribbed belt portion is a rubbery material. This differs significantly from the plastic piece on the production figure. First shots, sometimes referred to as test shots, are used to test the steel molds prior to mass production. The color of the injection molded plastic was irrelevant since the figure served only test purposes. Typically nonproduction color first shots are more desireable to collectors.
This test shot exhibits copyright dates and footholes. The copyright information and foot holes are typically etched into the steel production mold upon completion of its testing. Since the footholes and copyrights are present, we can assume this piece was from a final test batch created just prior to the beginning of full production.
Above is a comparison with the fully painted production figure. I think the visual differences between the two is strikingly obvious. Plastic Man is one of my favorite 3rd series characters and I am thrilled to have him in first shot form.