Who built this and when? A point is waiting for you!
Experts?
is it a tatra prototype 1947?
not a Tatra and earlier - but from CZ
skoda streamliner 1935?
not Skoda
was it an aero prototype model 1930s?
not an Aero
was it a one-off?
yes
does it have citroen in it?
no
any wikov connection?
no
was it based on other Czech brands,or was it the builder,s own original invention?
it was a self-designed car powered by an Aero 30 engine
was it named after the builder?
yes
did the builder of this car also build any self-built micro-cars?
yes, he built other small cars - even within a company
was it Hans Ledwinka?
no
was he involved with avia?
no
velorex,perhaps?
no
was josef sodomka involved with this car?
no
is the builder quite obscure?
at least one of his cars appeared on AP before
did the builder of this car,also build the mirda?
Mirda - no, but I was a bit misleading. There is a strong connection to Aero
Professionals?
Built by Bretislav Novotny
and obviously you're right