After some investigation I have determined that my 49 CJ3A has a 1952 M38 windshield. I thought that things just didn't look right when I looked at other members photos. I was going to put a vent in the windshield where the current cover is in place by 2 straps, but now I am not sure this would work since it is an M38. Also I have 4 other large holes that obviously are there for a reason. 2 holes in each of the windshield panels (left and right side next to where the vent would go). Will a vent fit? Then I would also have to weld up the other holes. Wish I could post a picture but I am not sure how to do this.
George