Solved: PN #360 -- Linett, cca 1921

[pnegyesi]

no

[pnegyesi]

Remember my clue: it was _built_ in Austria

[Wendax]

Austro-Rumpler?

[pnegyesi]

no

[Wendax]

Any relation to Fritz Hückel?

[pnegyesi]

nothing

[Wendax]

Linett?

[woodinsight]

Alba?

[pnegyesi]

It is a Linett. Locked for Wendax to come up with a model year and then I explain what I found !

[Wendax]

Linett was active from 1921 to 1928. I don't have any further information. My guess would be 1923.

[pnegyesi]

Okay, that'll do it - though the picture was taken in around 1921

I found this picture on a Norwegian site, where they say that Linett was made by the Norwegian-Austrian Automobile company. The reason it was made in Wien, Austria that the Norwegians felt there's enough experience, while in their home country there's not much. Linett is a combination of two Norwegian words: small and neat (liten and nett)
This was a 500 kg cyclecar, powered by a 13-hp air-cooled engine. It featured  chain drive, a patented non-electric starting device which could be operated from the driver's seat and Bosch lighting. Apparently it was sold in Oslo not in Austria

[woodinsight]

I have the builder as Linett Automobilfabrik GmbH, Geusaugasse, Wien III

[Wendax]

Geusaugasse 11, to be precise

[Allemano]

No luck with my guesses.. 
But I can add this:

"Die am 14. Januar 1921 in Wien gegründete Linett-Automobilfabrik Ges.m.b.H., geleitet von einem Ingenieur Alfred Raimann, hatte vorher mit Fahrzeugen aus ehemaligen Heeresbeständen gehandelt und produzierte bis Ende 1927 in geringer Zahl Cyclecars, über die keine näheren technischen Angaben vorliegen."