I'll have a picture for you in a few minutes. I think the magazine lips are slightly different also. This magazine was in a 4 digit NM that I purchased as new in the original box, once upon a time.. Lips of magazine were and are unaltered from the factory and follower appears to be the standard commercial Colt as made by metalform.
I care because I have been looking at a Colt National Match from 1968 which is described as being 100% original and NIB. The magazine with the gun just didn't strike me as being the corrrect one, so I thought I would check with some of the more knowledgeable people on here. The answer that I got from flintsghost was exactly what I was looking for.
The knowledge and expertise which forum members here are willing to share is invaluable, IMO.