"Electa" Brevettata... n°6

There has been the only stove-top-only version:

This one, that a friend of mine spotted in a private collection:

This one,

which is now in Lucio Del Piccolo's collection:

This one,

which has joined my collection,

as well as this one:

here:

Both together:

 And lately, i received this picture from Giorgio Gennaro: 

All the same... all different (see here).

But Giorgio's picture made me shake my head in disbelief,

because never had i seen this:

All the other machines i knew have this knob:

2014... the never ending story.