A PrimeStar dish made by CM has many differences to that picture. The LNB arms and holder are different. The CM dish has a 7" square bolt pattern holding the dish to the mount. A prodelin has a larger bolt pattern.
Yes I can post a picture once it warms up a bit (-30 camera won't likely work). This is a very old dish though, but does look like the second pic in Magic's post above. The two I have came from a local broadcast company.
Edit, braved the cold and used the smartphone. Can't read the model plate though it's too weathered or is gone... so I guess we can call it what ever we want.
Re-loaded the posts above missed the center picture for some reason, it obviously looks like the 3rd image above.