[TowerTalk] Need M2 6-meter beam identification help

[Phil]

I bought a used M2 6-meter beam at a hamfest this
past weekend.  The seller had a few pages of info
and said it was an M2 6M7JHV.  After getting it home
and laying it out in the shop floor, I find that the
docs don't match the antenna.  What I have is not
the 6M7JHV as, though it has 7 elements, the boom is
26 feet and not 30 feet, the boom diameter is 2"
rather than 1 3/4", and the element lengths and
spacing are different.  Can anyone suggest what
model this one might be so I can search for a
manual?

thanks, 73, Phil   W5BVB