I have come across two versions of the Discovery III. One that looks similar, if not identical, to the Discovery II/1500C called the Model 1500; and one that is in the colors of the Marquise (sand with taupe accents). Please let me know if that is accurate, or of there may have been a misprint.
Up-close of Discovery III/1500 hood:

Up-close of Discovery III/1500 hood:
