My '02 came factory with it, and it does have TOYOTA on the corner of the visor. It is held on by two bolts attached to a clip that grips the front of the sunroof. Mine is smoke grey.
Just purchased an OEM wind deflector in the classified section. You don't have a pic of the clips installed do you? Looks simple enough, just don't want to get it wrong and create a leak where the wasn't one. Searching for install instructions or pics in the meantime. Thanks.