Vern,
I am so sorry I upset you. I have read thru the specs at least 10 times, I would not be asking the question if my reading answered the question. And yes I have contacted the CO, and thus far they have been no help.
And to answer your question, the drawing that has these specs are on does NOT reference a version at all.
And secondly, I have offered to pay several people, but no one knows the answer that I have asked/offered.
So Vern, I apologize for inconveniencing you. You can ignore my post.