Hy Andyr
Still ShinOBIWAN is right
A true ribbon has no glue or wires . Itself is the electrical transducer. If you look carefully ad yr midrange panel construction it completely resemble the same structure as your so called "ribon" only mire sturdier and heavier wires I had maggies too
ah wait if yr ribbons have no glue or wires.. i read it wrongly 
So they are in fact ribbons?
Kyrill,
Read my post again, carefully.
What I said was: "My Maggie IIIas consist of a mylar panel which has the bass and mid-range wires glued to it.
Plus it has a separate 5' long ribbon supported in a metal "cage". This is pleated aluminium foil - not wire glued to mylar - suspended between 2 magnets. It crosses over to the mid-range panel driver at 2,600Hz.
So they are not solely "ribbon speakers" they are planar-ribbon hybrids.
But they do have a very long ribbon as one of the drivers."
AFAIK, there is no full range speaker which just consists of a ribbon - because ribbons simply can't flex enough to produce the amount of air you need to produce good bass. So a "ribbon speaker" always consists of a ribbon and at least one other driver - in my case, two.
Regards,
Andy