ok all 4 barrel tops are stamped like this and safe not in gold so all 4 are 702's
TY so much.
I don't think so. From top to bottom of the 4 guns you listed, I'm 99% that 1 and 4 are 700's, and 99% that #2 is a 702. (Note that it has cheek panels, drop points, and more engraving than either 1 or 4.) I think 3 is also a 700, even though it has more engraving than 1 or 4. (Engraving changed over the years.) But it does not have cheek panels/drop points like #2 does. I'd defer to Hugh because he's seen more of them than I have, but I can't recall any 702's without the panels/drop points.