I found the difference with the left hand models. The word "left" is written on the box!
Mine's not marked so I guess it's a right handed model!
I did get a holster.
Mine was made in 87. The one I got from CIA was made in 86 and the one I got from GB is 89. Looks like I need an 88 to fill the gap.
I can see this getting out of hand REAL fast.