[Antennaware] Telrex TB4EM

[Cam and Juli Hedrick]

Does anyone have information on this antenna, I've a chance to obtain one,
but its located 77 miles away and I haven't the time to make the drive right
now.  I am told that it was only up for 1.5 years and then disassembled and
stored in a garage since.  What's the Forward Gain, and so on?  Is it a 4
element beam and so on?  I'm really curious as I used to have the
monobanders by Telrex...years ago.
Thanks in advance,
Cam 
WA4JKW