Nate, I answered your pm.
And I will say here to the best of my knowledge why would Colonial Arms put the make and model of the choke on the very earliest model sight packed Star Dots only to leave the make and model off of the later ones? That to me don't make any sense and I can't see it. I looked at all the chokes that Walmart had of the Star Dot chokes in the 90's and not one had any writing on the tube. So that would lead me to believe that any Star Dot choke with writing on the tube wasn't an original Star Dot made by Colonial Arms. Now I could be wrong. And I had a choke that had knurling on the end like I have now and the other one with straight grooves and each had no writing.