Hi Fred B... Interesting stuff, Difficult to tell from the MB21 Photos, but looks more like
a Marconi "T" than an "L", Looks like the feedpoint goes off in Both directions
as no insulators above the fed "Y" point.....(it's all letters now!)

Suppose could do one, half way between the two, to help with the directional effects
that an Inverted "L" has...i.e. like a sort of lopsided Marconi "T"
but then of course, you would lose some horizontal length, that makes the "L" better

Suppose the Two telephone pole idea, is less prone to vandalism possibly
than a single guyed pole idea, specially if in an urban area, with little sods about

Rod Watts